Who knows, it's blueberry (Heidelbeer)

Soft margarine, sugar, vanilla and egg, beat until creamy. Add the yogurt, stir. Add flour with baking powder and lemon zest.

In the finished dough and mix up the blueberries, spread the batter into the muffin tin (I use "lady's mantle" who don't have them, grease the molds with oil and flour). My oven remained hot after the baking of the cake, turned it 180*and put muffins. If the oven is cold, pre-heat it to 180*C. Bake the cupcakes for 20 minutes. Cooled sprinkle with powdered sugar.

Everything is so easy and the muffins are very tender and delicious. Help yourself!