In a mixing bowl, combine flour, baking powder, sugar, and salt.

Add sour cream and egg, mix until a dough forms.

Knead the dough on a floured surface until smooth.

Preheat the oven to 375°F (190°C).

Roll out the dough and cut into circles.

Place a spoonful of fruit filling in the center of each circle.

Fold the dough over and seal the edges.

Place on a baking sheet and bake for 20 minutes or until golden brown.