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    Home / Recipes / Dessert / Keto Mock Apple Crumble (Gluten-Free)

    Keto Mock Apple Crumble (Gluten-Free)

    October 19, 2019 by Keto Cooking Christian 20 Comments

    This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases, see Disclosure.
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    Keto mock apple crumble made with Chayote squash as a low carb substitute for apples and topped with a gluten-free sweet cinnamon streusel crumble.

    closeup of mock apple crumble on white plate with whip cream on top

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    I'm so excited about this recipe, I can't even tell you how good it is!  Before Keto, apple crumble and apple crisp were my favorite desserts!  

    I thought I'd never find anything that's Keto friendly and would even come close to apples, but I did!  On top of using chayote squash in the place of apples, I made a low carb crumble topping as well, since apple crisps topping is typically made with oats.

    closeup of mock apple crumble on white plate

    Chayote squash makes the absolute perfect Keto substitute for apples.  They have a very similar texture and flavor, they even look a lot like apples.  

    In fact, they look like a cross between a granny smith apple and a pear, which is exactly how I'd describe the texture.  What's great about this filling, is you can use it in your favorite Keto Pie Crust and make "apple" pie with it!

    overhead view of mock apple crumble on white plate chayote squash and casserole in background

    The flavoring comes from a homemade Apple Pie Spice, lemon juice for tartness and Natural Apple Flavoring that has an incredible apple scent and flavor!  

    I really can't say enough how much this tastes like real apple crumble.  You honestly have to make it for yourself and you'll be so pleasantly surprised!

    What's in Keto Mock Apple Crumble

    • Chayote Squash
    • Butter
    • Apple Pie Spice
    • Brown Swerve
    • Swerve confectioners
    • Lemon (juice and zest)
    • Natural Apple Flavoring
    • Xanthan gum
    • Almond flour
    • Pecans

    *Exact measurements are listed in the recipe card below.

    How to Make Mock Apple Crumble

    Wash, peel, core and dice the chayote squash.

    chayote squash diced on cutting board

    Heat a pot or large skillet to low and melt the butter.  Add in the squash and toss to coat.

    chayote squash and butter in pot

    Cover with a lid and cook for 10 minutes.

    chayote squash in pot with sugar mixture on top

    Preheat oven to 350F.  Add in the rest of the filling ingredients and stir to combine. I prefer using a silicone spoon, so nothing sticks to it! Continue cooking for 10 more minutes, covered or until fork tender.

    cooked chayote squash in pot with some in ladle

    Before moving onto the next step, taste the filling mixture for sweetness.  If you want it sweeter, add in more Swerve confectioners at this time.

    crumble mixture in glass bowl

    Add the almond flour, pecans, apple pie spice and Swerve into a mixing bowl and mix them together.  Then pour the melted butter over the top and mix until well combined.  Once you add the butter, you’ll see the crumbles will start to form.

    mock apple filling in casserole

    Pour the filling into a 9″x 9″ glass or ceramic baking dish that’s been sprayed with nonstick spray.  Smooth the filling out into one even layer.

    closeup of mock apple filling in pot

    Add in the crumble topping over the top, distributing it evenly.

    mock apple crumble in casserole ready to bake

    Place on the lower ⅓ rack of your oven and bake for 30-35 minutes or until the topping is slightly golden.

    mock apple crumble in casserole baked

    If the crumble topping starts getting too dark, tent it with foil and continue baking.

    closeup of mock apple crumble in casserole baked

    Store leftovers in the fridge for several days or freeze.

    What is Chayote?

    Chayote is a bright green fruit shaped much like that of a pear. Its flesh is mild and has a texture somewhat like a potato or cucumber. Even though is is a fruit, chayote can also be used more like a vegetable in some cuisine.

    overhead view of mock apple crumble on white plate chayote squash and casserole in background

    Tips for Making the Best Keto Mock Apple Crumble

    What Are the Best Flavorings to Use in Low Carb Mock Apple Crumble?

    The most essential ingredient is Apple Pie Spice mix.  If you don’t have all the ingredients needed to make it, and would rather just purchase a ready-made Apple Pie Spice, you certainly can.  The measurements will remain the same.

    Although the Natural Apple Flavoring is optional, it’s highly recommended!  The recipe will still be great without it, but this really takes it to the next level.  Alternatively, you can use a good apple extract.  I’ve tried a few and really didn’t like the flavor, but the one I ended up with is really great!  It’s actually used to flavor beer and wine, so I thought I’d give it a shot and it’s by far the best one I’ve ever used!

    Brown Swerve is used to sweeten up the applesauce, which is really the best option.  It has such a wonderful, almost molasses flavor to it that is just perfect in this recipe. It’s much easier to find now, than it once was, they even sell it at Walmart. There are so many recipes you can use it in as well!

    If you can’t find Brown Swerve, you can use another Keto friendly brown sugar substitute instead.  As a last resort, you could use Swerve Confectioners, but it won’t have that same brown sugar-like flavor.

    Fresh lemon juice and zest adds a really nice tartness, much like a granny smith apple has.  Don't skip the lemon, it's important!

    Xanthan Gum is used as a thickener for filling.  You can omit it if you'd like, the juices will just be a little loose, but will still taste great without it.

    closeup of mock apple crumble on white plate

    What is the Best Way to Make a Gluten-Free Streusel Topping?

    I've made this same topping quite a few times and the combination of the Almond flour, texture of the chopped pecans, warm Apple Pie Spice, butter and both Brown Swerve (for that authentic brown sugar flavor and texture) and Swerve Confectioners (for added sweetness) works so perfectly together!

    If you don't have the apple pie spice, you can use a combination of cinnamon, nutmeg and a little ginger.

    5 chayote squash in white bowl

    Is Chayote Squash Keto ?

    As I mentioned earlier, it makes one of the best (if not THE best) substitutes for apples and because it’s low in carbs, it’s perfect for Keto!  Chayote squash also has some impressive health benefits, you can read more about them in this article!

    How many Carbs in Chayote Squash?

    1 chayote squash has only 4g net carbs.

    closeup of mock apple crumble on white plate with whip cream on top

    More and Low Carb Keto Dessert Recipes

    • Pumpkin Coffee Cake
    • Cranberry Sauce & Walnut Muffins
    • No-Bake Chocolate Raspberry Tart
    • Creme Brûlée 
    • Easy Pumpkin Cheesecake Mousse

    If you'd like to know more about baking on Keto, this article, Keto Baking Made Easy, is loaded with tips and info that you'll find helpful. You might also check out my Keto Sweet Treats eBook that has 50 amazing Keto dessert recipes, all with color pics, macros and more! I'm offering it at 50% off when you subscribe to my free weekly emails here.

    closeup of mock apple crumble on white plate with whip cream
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    closeup of mock apple crumble on white plate with whip cream on top

    Keto Mock Apple Crumble (Gluten-Free)

    Enjoy this Keto mock apple crumble and you’ll never even miss the apples! It’s made with Chayote squash as a Low Carb substitute for apples and topped with a gluten-free streusel crumble.
    4.84 from 6 votes
    Print Pin SaveSaved! Rate
    Prep Time 5 mins
    Cook Time 50 mins
    Total Time 55 mins
    Author: Julianne
    Course: Dessert
    Calories: 285
    Servings: 8

    INGREDIENTS

    FOR THE “APPLE” FILLING

    • 4 Chayote Squash
    • ½ cup butter
    • 1 tablespoon apple pie spice
    • ¼ cup Brown Swerve
    • ¼ cup Swerve Confectioners
    • Juice and zest of 1 lemon
    • 2 teaspoons of Natural Apple Flavoring
    • ¼ teaspoon Xanthan Gum

    FOR THE CRUMBLE TOPPING

    • 1 ¼ cups super fine almond flour
    • ⅓ cup pecans, chopped
    • ⅓ cup grass fed butter, melted
    • ⅓ cup Brown Swerve
    • 1 teaspoon apple pie spice

    INSTRUCTIONS

    • Wash, peel, core and dice the chayote squash. Heat a pot or large skillet to low and melt the butter. Add in the squash and toss to coat. Cover with a lid and cook for 10 minutes.
    • Preheat oven to 350F. Add in the rest of the filling ingredients and stir to combine. I prefer using this silicone spoon, so nothing sticks to it! Continue cooking for 10 more minutes, covered or until fork tender. Before moving onto the next step, taste the filling mixture for sweetness. If you want it sweeter, add in more Swerve confectioners at this time.
    • Add the almond flour, pecans, apple pie spice and Swerve into a mixing bowl and mix them together. Then pour the melted butter over the top and mix until well combined. Once you add the butter, you’ll see the crumbles will start to form.
    • Pour the filling into a 9″x 9″ glass or ceramic baking dish that’s been sprayed with nonstick spray. Smooth the filling out into one even layer. Add in the crumble topping over the top, distributing it evenly.
    • Place on the lower ⅓ rack of your oven and bake for 30-35 minutes or until the topping is slightly golden. If the crumble topping starts getting too dark, tent it with foil and continue baking. Store leftovers in the fridge in an airtight container for several days or freeze.
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    Nutrition Facts
    Keto Mock Apple Crumble (Gluten-Free)
    Amount Per Serving
    Calories 285 Calories from Fat 243
    % Daily Value*
    Fat 27g42%
    Saturated Fat 13g81%
    Carbohydrates 7g2%
    Fiber 3g13%
    Sugar 2g2%
    Protein 5g10%
    * Percent Daily Values are based on a 2000 calorie diet.

    *Nutritional data is provided as a courtesy and is accurate to the best of my knowledge. You can verify it using the nutrition calculator of your choice. All data is based on net carbs, without sugar alcohol- Swerve/Erythritol, Allulose, or Monk Fruit.

    NOTE: Recipes using Swerve/Erythritol can be substituted 1:1 with a Monk fruit/Allulose blend.

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    Filed Under: Baking, Dessert, Posts, Recipes Tagged With: keto apple crisp, keto apple crumble, keto thanksgiving desserts, low carb apple crumble, low carb apple filling, low carb thanksgiving desserts

    Bible verse of the day

    But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation.
    James 5:12

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      Recipe Rating




    1. Wren

      December 23, 2021 at 6:32 am

      In the notes it says to use 1 squash but in the recipe it calls for 4, which one is correct?

      Reply
      • Keto Cooking Christian

        December 23, 2021 at 8:01 am

        The comment was referring to the Mock Applesauce that was linked in the post. I removed it, in case it causes any confusion. Thanks!

        Reply
    2. AngelaB

      December 17, 2020 at 9:54 pm

      5 stars
      I just took my Mock Apple Crumble out of the oven. The whole house smells heavenly! My darling diabetic husband is waiting for it to cool enough for him to eat a portion. Or two. Thanks so much for this recipe! I can’t wait for my keto daughter to try it this weekend.

      Reply
      • Keto Cooking Christian

        December 18, 2020 at 12:42 pm

        That's wonderful and I hope everyone enjoyed it!

        Reply
    3. Darla Brochu

      December 08, 2020 at 12:15 pm

      5 stars
      Made this today... oh my goodness! Tastes like the real thing - hubby keeps going back for more. Definitely a keeper.

      Reply
      • Keto Cooking Christian

        December 08, 2020 at 12:27 pm

        Yay, so glad you both liked it!

        Reply
    4. Deborah Rawlings

      July 15, 2020 at 4:05 pm

      4 stars
      Tastes delicious and totally has apple feel and taste of apple crisp, but mine was swimming in butter! I feel like I could cut butter by half in both filling and "topping."

      Reply
      • Keto Cooking Christian

        July 17, 2020 at 8:28 pm

        Glad you liked it. I do prefer my apple crumble on the buttery side, personally 🙂

        Reply
    5. Georgette Clark

      November 30, 2019 at 5:53 pm

      Love this recipe easy to make and delicious tastes just like apple crisp.

      Reply
      • Keto Cooking Christian

        November 30, 2019 at 5:56 pm

        Awesome, glad to hear you enjoyed it!

        Reply
    6. Betty

      November 16, 2019 at 9:43 pm

      5 stars
      I made this and loved it. Definitely a keeper! Especially for anyone who loves apple desserts. Very easy recipe! Thank you for sharing it.

      Reply
      • Keto Cooking Christian

        November 16, 2019 at 9:54 pm

        So glad to hear you love it!

        Reply
    7. Nancy

      November 14, 2019 at 12:34 pm

      Have been looking for ways to make fruit pie fillings and I will try xanthan gum1/4 t with blueberry, as well and see if it works when I have time. Don't want to use cornstarch and I have a mini pie maker.

      Reply
    8. GAfromCA

      November 10, 2019 at 1:44 am

      If you have trouble finding chayote (also called mirliton squash) at your local grocery store or produce market, go to a Mexican/Latino food market.

      Reply
    9. Valerie Boquiren

      November 01, 2019 at 3:41 pm

      5 stars
      All I can say is THANK YOU!!!

      Reply
      • Keto Cooking Christian

        November 01, 2019 at 4:46 pm

        You are most welcome!!

        Reply
    10. Darcie F.

      October 21, 2019 at 2:56 pm

      5 stars
      I was very skeptical thinking there is no way it could taste like apples. Hands down one of the BEST mock recipes I have ever had and super easy to make!

      Reply
      • Keto Cooking Christian

        October 21, 2019 at 2:57 pm

        So glad you liked it, it's my mom's favorite now!!

        Reply
    11. Ginette

      October 20, 2019 at 11:56 am

      Where to find the coyote squash in canada

      Reply
      • Keto Cooking Christian

        October 20, 2019 at 1:47 pm

        I'm not sure what stores you have in Canada, but I buy mine at Walmart in the US. I would guess that many grocery stores have it this time of year.

        Reply

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    Julianne Walser KCC

    I'm Julianne, welcome! I offer tasty and indulgent Keto and Low Carb recipes that will never leave you feeling deprived!

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