Melt the butter in a small saucepan and let cool down a little.
Mix the flour with the baking powder and sift into a wrench. One after the other, add 120 g sugar, vanilla sugar, whipped cream, eggs and 3 tablespoons butter. Beat with a hand mixer until creamy. Peel and core the apple and cut into 1 cm cubes. Fold under the dough.
Preheat the oven to 200 ° C top / bottom heat. Put two muffin paper cases into each other and fill in the batter. Then sprinkle with almonds and the remaining 30 g of sugar. Sprinkle evenly with 4 tablespoons of butter.
Bake the muffins in the hot oven for about 20-25 minutes. Let cool down.