01 -
Preheat oven to 350°F (180°C) or 320°F (160°C) fan/convection. Line a muffin tin with paper liners.
02 -
Melt the butter in a small saucepan and set aside.
03 -
Beat eggs with sugar and lemon zest for 5-6 minutes until creamy. Mix flour, baking powder, and salt, then sift and add to the egg mixture.
04 -
Briefly stir in the quark and melted butter. Distribute the batter among the paper liners.
05 -
Bake for 18-20 minutes until golden brown. Let cool on a wire rack and dust with powdered sugar.