Allow the Rhodes White Dinner Rolls to double in size.
Brush the tops of them with melted butter and set aside for a few minutes while you make the filling.
To make the filling, mix the cream cheese, sugar, flour, egg yolk and vanilla with a mixer until well blended. Leave out, at room temperature, while you prep the rolls.
Using the back of a good rounded spoon, make small wells in the tops of each roll. The butter on the rolls prevents the spoon from sticking to the dough. If it does stick, just butter the back of your spoon.
Put a tablespoon of filling into the well of each roll. Allow the rolls to rise again, for about 25-30 minutes.
Mix the posipka (crumb topping) ingredients together with a fork.
Sprinkle the topping onto each roll. Bake at 375 degrees for 17-23 minutes, watching carefully so they don't get too brown. Serve warm! Makes 24 kolaches.