Ciazteczka z Makiem

Preheat oven to 350°F (175°C).

Cream together butter and confectioners' sugar until light and fluffy, about 2-3 minutes.

Beat in 2 egg yolks and 1 whole egg one at a time, mixing well after each addition until fully combined.

Stir in sour cream until the wet mixture is smooth and well incorporated.

Whisk together flour, baking powder, and poppyseeds in a separate bowl.

Fold the dry ingredients into the wet mixture gently until just combined, being careful not to overmix.

Transfer dough to a greased baking pan and spread evenly to about ½-inch thickness.

Bake for 22-25 minutes until golden brown and a toothpick inserted in the center comes out clean.

Cool in the pan for 5 minutes, then turn out onto a wire rack to cool completely before serving.