Preparation

Blend the butter and the sugar to create a fluffy mass. Add the egg and keep stirring. Add the Lauretta Lemon Twist filling. Sift the flour, the potato starch and the baking powder. Add them to the mass and stir using a spatula.
Grease a small muffin sheet with butter and flour it. Pour in the dough, leaving a 1 cm gap at the top.
Bake the muffins for about 25 minutes at 160°C. Decorate them the way you want.