Preheat the oven to 180 ° C (convection 160 ° C). Place 1 paper case each in the recess of the muffin tray or place 3 paper cases inside each other and place on a normal baking sheet.
Melt the butter over low heat, mix the flour and baking powder. Mix the eggs with creme fraîche (or sour cream, sour cream or yoghurt), sugar or salt with the whisk, stir in the melted butter. Quickly stir in the flour mixture. This is all very easy to do by hand, you don`t need a mixer!
Pour the batter into the molds, bake for 20-25 minutes.