How to Make It
For Kolache Dough: Preheat oven to 400 degrees. Sift flour and baking powder; set aside. Beat butter, cream cheese, milk, and sugar with a stand mixer. Add beaten egg yolk; mix until combined. Add flour mixture; mix until combined.
Dust work surface with both flour and powdered sugar. Roll out dough to 1/8-inch thickness, and cut into 2-inch rounds. Place on an ungreased cookie sheet and make a depression with a thumb or spoon in the center of each round. Add 1 teaspoon of pie filling or Cream Cheese Filling into each center. Bake kolaches for around 10 minutes, or until slightly brown. Sprinkle with powdered sugar before serving.
For Cream Cheese Filling: Beat until combined.