Blueberry Crumble Cake

First, preheat the oven to 170–175 °C and prepare a baking dish (21 cm × 21 cm).

Meanwhile, in a large bowl, mix the flour with honey, baking powder, and room temperature butter. The resulting dough should resemble classic crumble for pies. Pour ¾ of the dough into the prepared baking dish and press it down with your hand.

To prepare the quark part of the cake, mix quark, eggs, and the zest of 1 lemon in a large bowl. Mix until smooth and then pour the resulting cream over the smoothed dough in the baking dish.