German Streuselkuchen Breakfast Cake

Instructions

1. 1
   Mix warm milk, yeast, and a pinch of sugar; let sit for 5 minutes until foamy.
2. 2
   Combine 500g flour, egg, softened butter, 30g sugar, and salt in a large bowl.
3. 3
   Add yeast mixture to flour mixture and knead until smooth and elastic, about 8 minutes.
4. 4
   Place dough in a greased bowl, cover, and let rise for 30 minutes.
5. 5
   Press dough into a greased baking sheet or rectangular pan.
6. 6
   For topping: combine 150g flour, brown sugar, and cinnamon in a bowl.
7. 7
   Cut cold butter cubes into flour mixture using a fork or fingertips until crumbly.
8. 8
   Sprinkle crumble topping evenly over dough.
9. 9
   Bake at 190°C (375°F) for 20-25 minutes until golden brown.
10. 10
    Cool slightly before serving warm or at room temperature.