Beat softened butter with sugar and vanilla sugar well.
One by one, enter the eggs, beating each time until a homogeneous mass is obtained.
Then pour in the alcohol, add the zest and baking powder.
Then gradually introduce flour. Knead the dough, it should not be too thick, it should fall off the spoon.
Melt the chocolate in a water bath. Put the dough in a greased cupcake pan, randomly shifting it with spoons of chocolate. Then mix the dough lightly to make a marble pattern.
Bake at 180 * C for 50-60 minutes. Readiness to check with a wooden sliver.
Cool the finished cake a little and take it out of the mold.
After cooling completely, sprinkle with powdered sugar or cover with icing.
Enjoy your coffee! However, this cupcake is also not bad for tea!