Step 1

Preheat oven to 325 degrees F (165 degrees C). Coat a 9x13-inch pan with butter.

Step 2

Beat butter and ricotta cheese together in a stand mixer fitted with a paddle attachment until creamy. Add sugar and sucralose sweetener; beat until smooth. Add eggs one at a time, mixing well until each is incorporated. Mix in vanilla extract and almond extract.

Step 3

Whisk flour, baking powder, and salt together in a bowl. Slowly mix flour mixture into butter mixture. Fold blueberries gently into the batter.

Step 4

Pour batter evenly into the prepared pan.

Step 5

Bake cake in the preheated oven until edges are golden brown, 25 to 30 minutes. Continue baking until the center is set and a toothpick inserted into the center comes out clean, 50 to 75 minutes.