Dough

• 30 g fresh yeast

• 1 teaspoon sugar
• 1 tablespoon all purpose flour for the yeast
• 100 ml lukewarm milk for the yeast
• 500 g all purpose flour
• 1 pinch salt
• 200 g sugar
• 400 ml lukewarm milk
• 2 whole eggs
• 100 g lukewarm melted butter

Fruit

• 500 g fresh blueberries could be even more then you have to cover the dough completely (more fruit / more juicy)

Crumble Topping

• 80 g butter
• 80 g sugar
• 110 g flour If baking in the Czech Rep. use "Hruba mouka" type of flour.