On a blender put the milk, eggs and oil. Start to blend it and adding the flour one bit at a time.

After all the flour is added blend it for a couple of minutes until the liquid is uniform. If needed use a spoon to to mix any flour that stick to the blender cup.

Heat a pan to medium heat and using a ladle put a portion of the liquid covering the bottom of the pan.

Fry both sides until it turns golden yellowish/brownish.

Prepare a glass roaster by putting some tomato sauce on it, it will help the pancakes not to stick.

Put the pancake on a plate, spread a thin layer of tomato sauce, position the filling and roll it. First one I did with a mix of leeks, palm hearts and cheese.

Other one with cheese and ham.

Finish with some tomato sauce and cheese on the top.

Take it to a pre heated oven at 160C for 10~15min. Checking every 5 min.

Ready.