2/3 cup all-purpose flour 2 eggs 1 cup milk 3 tablespoons butter, at room temperature 1/4 teaspoon salt 1 teaspoon baking powder 1 teaspoon ground cardamon
Whip the eggs, butter and milk together to get some air into the batter, then add the dry ingredients. Mix well and let sit for a minute.
Use a crepe pan to cook crepes, or just swirl it around in a nonstick pan so it is thin enough. Fill with Nutella and roll up.