In a bowl, combine the flour and 2 eggs. Melt 1 tablespoon of butter with warm milk and add it to the flour mixture along with a pinch of salt, 1 tablespoon of sugar, 1 tablespoon of active dry yeast, and baking powder. Mix the dough, adding 1/4 cup of water as needed. The dough should be soft and slightly sticky. Let it rise.

Shape the dough into 40-gram balls and place them on a baking sheet. Let them rise a second time. Brush with an egg mixed with a few drops of vinegar and sprinkle with sesame seeds or other seeds like poppy or oats, as desired. Bake in a preheated oven at 400°F until cooked through.