Ina's Muffin

Preheat the oven to 180 °C (conventional/top-and-bottom heat) and line a muffin tin with paper liners.

Beat the soft butter and sugar together briefly in a bowl until creamy.

Stir in the egg(s), then add the yogurt and mix until smooth.

Mix the flour, vanilla sugar and baking powder, add to the mixture and stir only until no dry flour remains.

Fold in cocoa powder or chocolate chips briefly, if desired.

Spoon the batter into the muffin cases and top with sweet cherries (or alternatively mandarins/strawberries).

Bake the muffins for 15–20 minutes, until golden.

Let the muffins rest for 5 minutes, then remove them from the cases and cool on a wire rack.