Preheat the oven to 185 ° C. Grease muffin tins if necessary.
Heat and melt the butter. Sieve the flour with baking powder.
Mix eggs, sour cream or sour cream and cane sugar. Add the melted butter. Add the flour mixture and stir everything vigorously. Pour 1 tablespoon of batter into each of the muffin molds.
Put 1 teaspoon of poppy seed mixture on top and spread the rest of the batter over it. Bake the muffins for about 20 minutes.