Rogaliki (Polish Jam-Filled Crescents)

1 . Stage

Stir milk and yeast together in a bowl until smooth. Set aside until foamy, about 10 minutes.

2 . Stage

Preheat the oven to 350 degrees F (175 degrees C). Line a baking sheet with parchment paper.

3 . Stage

Combine flour, butter, sour cream, sugar, eggs, and egg yolks in a large bowl. Stir in yeast mixture. Mix well using an electric mixer at first, then using your hands.

4 . Stage

Turn out dough onto a floured work surface and knead until smooth, adding more flour, 1 tablespoon at a time, if dough is sticking to your hands. Form dough into a long log and cut into 1 1/2-inch rounds. Cover rounds with a cloth.

5 . Stage

Roll each round of dough into a thin circle. Cut the circle into six triangles, as you would a pizza. Place 1 teaspoon jam at the wider end of each triangle, then roll up like a croissant. Place on the prepared baking sheet. Repeat until all the dough is used up.

6 . Stage

Bake in the preheated oven until rogaliki have risen and are golden brown, about 20 minutes. Remove from oven and cool completely, about 30 minutes.

7 . Stage

Place confectioners' sugar in a bowl and stir in water, 1 tablespoon at a time, until a drizzling consistency is reached. Drizzle icing over cooled rogaliki.