Buchty - Czech Sweet Filled Buns - Tom the Chef

Ingredients

• 1/2 cup lukewarm milk
• 2 teaspoons confectioners’ sugar
• 2 teaspoons active dry yeasts
• 1/2 cup bread flour
• 2 eggs
• 1 cup granulated sugar
• 1 stick very soft unsalted butter
• 4 cups bread flour
• 1/4 teaspoon salt
• 1/2 teaspoon vanilla extract
• 1 tablespoon prune preserve or strawberry marmalade