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Blackberry cupcakes on top of a wooden board
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Blackberry Cupcakes

These blackberry cupcakes have a moist vanilla cupcake that uses Allulose sweetener. Fill with blackberry jam and top with blackberry cream cheese frosting.
Prep Time1 hour 10 minutes
Cook Time16 minutes
Total Time1 hour 26 minutes
Servings: 12 cupcakes
Calories: 289kcal

Ingredients

Vanilla Cupcakes

  • 1 ¾ cup Cake flour
  • ½ tablespoon Baking powder
  • ½ teaspoon Salt
  • ½ cup Unsalted butter room temperature
  • 1 ¼ cup Wholesome Allulose no calorie sweetener
  • ¼ cup Sour cream room temperature
  • 1 tablespoon Pure vanilla extract
  • 2 Egg whites room temperature
  • 1 Large egg room temperature
  • ½ cup Buttermilk room temperature

Blackberry Jam

Blackberry Cream Cheese Frosting

  • ¾ cup Unsalted butter slightly cold`
  • 4 oz Cream cheese room temperature
  • 5 cups Powdered sugar sifted
  • Pinch of salt
  • ¼ cups Blackberry puree Puree 1 ½ cups of blackberries
  • Blackberries for decoration

Instructions

Vanilla Cupcakes

  • Preheat oven to 350°F. Line a 12 cup muffin tin with muffin liners. Set aside.
  • Sift together the cake flour, baking powder, and salt. Set aside.
  • Using a mixer, beat the butter and Allulose sweetener. Beat on medium-high for 3 minutes. It will start as crumbly, but it will become light and fluffy. Add in sour cream and vanilla. Mix until combined. Scrape the bowl.
  • Add in egg whites and egg one a time on low. Scrape the bowl and mix for another 10 seconds. Add ⅓ of the dry ingredients and ½ of the buttermilk and mix on low. Add in another ⅓ of the dry ingredients and rest of buttermilk. Then, add the rest of the dry ingredients. Scrape the bowl and mix for 15 more seconds on low.
  • Use a cookie scoop and fill the muffin tin ⅔ full. There will be a little bit of batter leftover. Bake for 15-17 minutes. The cupcakes are done baking when a toothpick inserted comes out clean.
  • Let the cupcakes sit in the pan for 10 minutes before transferring to a cooling rack. Make sure they cool completely before decorating.

Blackberry Jam

  • In a saucepan over medium-low heat, combine blackberries, Allulose sweetener, lemon juice, water, and salt. Heat until the sugar is melted. Turn the heat to medium and stir until it starts to simmer.
  • Let the jam cook for 8-12 minutes. Make sure to stir to avoid any burning on the bottom. Halfway through, mash the blackberries in the pot. Use a potato masher or a wooden spoon. The jam is done cooking when it is thick and coats back the spoon.
  • Transfer immediately to a glass measuring cup. Let cool completely before adding to the cupcakes
  • Use a cupcake corer or a sharp knife to core the cupcakes. Go about ⅔rds down. Save the tops. Use a teaspoon to fill the cupcakes all the way with the jam. Place the tops back on the cupcakes.

Blackberry Cream Cheese Frosting

  • Let the butter sit on the counter for 30 minutes for it to be slightly cold. While waiting, sift the powdered sugar. Use a food processor to puree the blackberries. Stir through a mesh sifter to separate the seeds from the juice.
  • Using a mixer, beat the cream cheese on medium-high for 1 minute. Then, add in the butter and beat for another 1-2 minutes until smooth. Scrape the bowl. Slowly add in the powdered sugar. Mix until combined. It should be thick.
  • Add in salt and blackberry puree. Mix on low until combined. Scrape the bowl. Mix on medium for 30 seconds. It will be a purple color.
  • Chill the frosting in the fridge for 15 minutes before decorating the cupcakes. Top cupcakes with blackberries and keep stored in the fridge.

Notes

Flour- Make sure flour is spooned and leveled or use a kitchen scale. Compacted flour will dry out the cupcakes.
High altitude baking- Add an extra 1 ½ tablespoon of flour.
You can make the cupcakes and jam before you need them.
 
 

Nutrition

Calories: 289kcal | Carbohydrates: 67g | Protein: 4g | Fat: 24g | Saturated Fat: 15g | Trans Fat: 1g | Cholesterol: 65mg | Sodium: 206mg | Potassium: 68mg | Fiber: 1g | Sugar: 1g | Vitamin A: 765IU | Vitamin C: 1mg | Calcium: 64mg | Iron: 1mg