Dissolve butter, sugar and salt in warm milk.
Mix flour with a baking powder and pour a little milk, mix well so that there are no lumps, then pour the rest of the milk and beaten eggs, mix well. Let the dough stand for 10 minutes. Then pour the dough onto a baking sheet 35x45 cm. Covered with parchment, if you do not have such a large baking sheet then just divide the dough into several parts.
Bake at 180 degrees for 30-40 minutes. During baking, the dough swells, but after removing the pancake from the oven, it will fall and the pancake will be flat.
Lubricate the pancake with any filling, roll and serve.
Lazy Finnish pancakes in the oven are very tender, airy and simply incredibly tasty. Cooking such pancakes is very simple, you can serve them with absolutely any filling and without it. Such pancakes are very fragrant, the smell is simply divine.