Celebrate summer with this Keto Blackberry Pie recipe. This pie is made with mozzarella dough and a cross between a pastry and a pie. It makes a satisfying berry dessert that can be enjoyed by those on low-carb, keto, Banting, or diabetic diets.


Taking a bite of the keto blackberry pie.


The recipe for Keto Blackberry Pie

I wasn’t sure whether to call this recipe a blackberry pie or a blackberry pastry because it has qualities of both. For this recipe, I used mozzarella dough (a variation of fathead dough) based on the dough I used for my recipe for low carb strawberry pastries. I based the filling on the raspberry portion of my raspberry cream cheese coffee cake


Instead of using a pie plate or pan, I decided to shape the dough, spread on the filling, then fold the dough over the filling. Next, I pinched the edges and baked it on a sheet. 


Variations of this Berry Pie

While I shaped this pie into a single pastry, you could also make individual hand pies using this recipe. For example, you can make them into pastries like I do in our recipe for strawberry pastries. You can also use a circular biscuit cutter and create round pastries like I did in my recipe for low carb apple pastries.


If you like the idea of having it in one pie, but want something a bit fancier for a special occasion, you can make a braid like I did with our recipe for our Low-Carb Baklava Braid.


How to garnish a blackberry pie

For me, the purple filling coming through the pastry vents provides enough visual interest that I don’t feel the need to provide a lot of garnish. 


If you’d like to give it an extra “pop”, you might consider brushing on an egg wash before baking the pie. This adds a bit of shine to the dessert. A very light sprinkle of large erythritol granules will add a crystal bling and a bit of crunch. 


Other options for garnishing can be done after baking. For example, sprinkling the top with powdered sweetener can be done right before serving. Drizzling the pie with a  glaze will add a bit of sweetness as well as decoration.


Finally, a bit of grated lemon zest can add some lemon flavor and a pop of yellow.


The blackberry pie before cutting.Disclaimer: Some of the links on this site are affiliate links which means we make a small commission from any sales to help keep the recipes coming! You do not pay any more. Thank you for your support!


Can I make blackberry pie with frozen blackberries?

If you don’t have fresh blackberries, frozen ones will work fine. If you’re counting carbohydrates, be sure to read the ingredients on the package. Sometimes, food companies will add sugar to the berries before freezing them. Any added sugar will increase the carbohydrate content. 


If you decide to use frozen blackberries, you won’t need to defrost them first. Simply add them in the same way you would the fresh berries. If the berries give off a bit of extra water, just cook the filling for a few extra minutes to thicken the filling.


Can I use other berries in this recipe for keto friendly pie?

This recipe is very versatile and other berries should work very well. You could use blueberries, raspberries, black raspberries, strawberries, or a combination of berries. 


Of course, substituting berries will change the nutritional values for the recipe. 


Final words

Berries are at their best in the summer. Don’t miss out on enjoying these sweet, low carb fruits, whether you make this recipe, or simply eat the berries by themselves. Enjoy!


Keto-Friendly Blackberry Pie recipe

Celebrate summer with this Keto-Friendly Blackberry Pie recipe. This pie is bursting with blackberry goodness and makes a satisfying berry dessert the whole family will love.

A piece of blackberry pie on a plate.
5 from 6 votes

Keto Blackberry Pie

Celebrate summer with this keto friendly Low Carb Blackberry Pie recipe. This pie is made with mozzarella dough and a cross between a pastry and a pie. It makes a satisfying berry dessert that can be enjoyed by those on low-carb, keto, Banting, or diabetic diets.

Course Breakfast, Dessert, Snack
Cuisine American
Keyword keto berry dessert, keto blackberry dessert, keto blackberry pie, keto summer dessert, low carb blackberry dessert
Prep Time 25 minutes
Cook Time 20 minutes
Total Time 45 minutes
Servings 8
Calories 169 kcal
Author Annissa Slusher


For the blackberry filling:

For the pastry dough:


For the blackberry filling:

  1. In a small (about 1 1/2 quart) saucepan, whisk together the two tablespoons of sweetener and the xanthan gum.

    Mixing the sweetener and xanthan gum for the keto pie.
  2. Slowly add the lemon juice and the water, whisking between additions. Add the blackberries. Place pan over medium low heat. Bring mixture to as simmer, stirring frequently. Turn heat to low. Simmer until mixture has thickened and is jam-like. Set aside while making the dough.

    Adding the lemon juice, water, and blackberries for the filling.

For the pastry dough:

  1. Preheat oven to 350º Fahrenheit. Have a rolling pin, a baking sheet, and two sheets of parchment (about 18" long) within reach.

  2. In a large, heavy saucepan, whisk together the almond flour, granulated stevia/erythritol blend, shredded mozzarella, and vanilla extract.

    Mixing the ingredients for the pie crust.
  3. Place saucepan over low heat. Heat, stirring constantly, until cheese melts and the mixture becomes a dough. Turn dough out onto one of the sheets of parchment. Shape into a thick rectangle.

    Shaping the dough into a rectangle.
  4. Cover dough with the other sheet of parchment. Roll out dough into a rectangle, about 11" X 14". Remove the top sheet of parchment and use it to line the baking sheet.

  5. Keeping the parchment paper underneath, transfer the dough rectange to the baking sheet. Spoon the blackberry filling onto one side of the rectangle, being careful not to get too close to the edges. Leave about 1/2 inch of the uncovered.

    Spreading the filling on the crust.
  6. Fold the other half of the rectangle over the filling. Using a fork, press down on the edges to form a seal. Place the pastries on the prepared baking sheet. Using a sharp knife, cut holes in the top so steam can vent while they bake. Be sure the holes go all the way through the dough. Otherwise, they will pop open at the seams while they bake.

    Keto Blackberry Pie ready for the oven.
  7. Bake in the preheated oven for 19-22 minutes or until the tops are golden brown. Check it frequently, because the bottoms will burn quickly. Remove from oven. Allow to cool 5-10 minutes before enjoying. Store any leftovers refrigerated in an airtight container.

    Baked Blackberry Pie.
Nutrition Facts
Keto Blackberry Pie
Amount Per Serving (1 piece)
Calories 169 Calories from Fat 108
% Daily Value*
Fat 12g18%
Saturated Fat 5g31%
Trans Fat 0g
Polyunsaturated Fat 0g
Monounsaturated Fat 0g
Cholesterol 20mg7%
Sodium 212mg9%
Potassium 44mg1%
Carbohydrates 8g3%
Fiber 3g13%
Sugar 3g3%
Protein 12g24%
Vitamin A 7%0%
Vitamin C 9%11%
Calcium 19%2%
Iron 4%22%
Net Carbs 5g
* Percent Daily Values are based on a 2000 calorie diet.