1. For the dough: In bowl of an electric mixer, combine yeast and milk and allow to sit for a few minutes. Stir in eggs, butter, sour cream, sugar, salt and flour. Mix well until dough turns into a ball. Transfer to a covered container and allow to rest for 30 minutes, then refrigerate overnight. 2. For the filling: In bowl of an electric mixer, combine farmer’s cheese, sour cream, sugar, flour, vanilla, egg yolk and lemon zest. Mix well. Transfer to a covered container and refrigerate until needed, up to 24 hours. 3. For assembly: Preheat oven to 350 degrees, and line two baking sheets with parchment paper. Lightly dust a work surface with flour and roll out dough into a rectangle 1/8 inch thick. Cut into 4-by-4-inch squares. Spoon about 1 tablespoon filling into center of each square. Pick up corners of each square and press points together. 4. Arrange pastries on baking sheets about 1½ inches apart. Brush with egg mixture. Bake until golden, about 20 minutes. Allow to cool and serve as is or sprinkle with confectioners’ sugar. ---------------------------------------------------------------------------
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Ingredients