Name: Lemon Cupcakes with Fresh Blueberry Buttercream
Prep time: 30 min
Cook time: 30 min
Total time: 60 min
Ingredients: 1 and 3/4 cups all-purpose flour; 1 teaspoon baking powder; 1/2 teaspoon baking soda; 1/4 teaspoon salt; 1 cup full-fat sour cream; 1/2 cup (1 stick) unsalted butter, at room temperature; 3/4 cup granulated sugar; 1/2 teaspoon lemon extract; 2 teaspoons finely grated lemon zest; 1 large egg plus one egg yolk, at room temperature; 1 and 1/2 tablespoons fresh lemon juice; 1 and 1/2 cups blueberries, fresh or frozen, if using frozen don't thaw; 2 tablespoons lemon juice; 2 sticks (8 ounces) unsalted butter, VERY soft; 1/2 teaspoon salt; 3 1/2 cups confectioners sugar (more if needed), sifted; 1 tablespoon heavy cream (more if needed); 1/4 cup fresh blueberries, for decorating (optional)