Keto Blueberry Biscuits

Contents
Keto Blueberry Biscuit
6 ounces fresh or frozen blueberries
1 ½ cups almond flour (finely ground)
½ cup coconut flour
1/4 cup granulated sugar substitute
½ cup full-fat sour cream
4 tablespoons unsalted melted butter
3 eggs
1 ½ teaspoons of baking powder
¼ teaspoon sea salt
1/2 teaspoon lemon extract
Keto Lemon Frosting
1/2 cup confectioners’ sugar substitute
2 tablespoons of fresh lemon juice
1/2 teaspoon lemon extract
1-2 tablespoons heavy whipping cream