My croatian aunt used to make the same. I have not tried this recipe, but it might be something like you are looking for. Good luck!

POPPY SEED KOLACHE

FOR THE POPPY SEED FILLING:*
1 cup poppy seed
1/2 cup milk
1/4 cup honey
1/3 cup chopped dates
1/3 cup chopped nuts
1 dash ground cinnamon
FOR THE KOLACHE DOUGH:
3 cups flour
1/2 cup ground almonds
1 1/2 tsp baking powder
1/4 tsp salt
1/2 cup sugar
1 cup butter
1 egg
1 tbsp lemon juice
1 tsp grated lemon peel
2 tbsp water

TO MAKE THE FILLING:
Combine all ingredients for the filling in a saucepan; cook over low heat until thick, stirring often. Cool and it's ready to use.

TO MAKE THE KOLACHE:
Mix the first five ingredients and the lemon peel; cut in the butter until mixture is crumbly.

Combine the egg, lemon juice and water to add to the flour mixture. Knead lightly into a ball; divide into 8 parts.

Roll out each part on a floured board until it is 1/4 inch thick, then cut into 4 inch square. Spoon about 1 teaspoon Poppy Seed Filling into the center of each square. Bring two ends together to form a cylinder. Pinch together to seal. Place on a greased baking sheet and brush with milk.

Bake at 350 degrees F for 15-20 minutes.

*Any cooked fruit or jam may be used instead of Poppy Seed Filling.

Source: Rose Marie Miller, Our Favorite Recipes St. Anthony Croatian Catholic Church