Start preparing the dough. To do this, beat the eggs with salt, vanilla and regular sugar until white foam. Add sour cream and mix again.
Mix flour with baking powder, add it to the dough together with butter, mix until smooth.
Pour the batter into the molds, filling them halfway. Bake for about 30-35 minutes. When ready, leave the muffins to cool for 10 minutes, then serve, removing them from the molds.