Potato and meat pudding

• 1 3/4 lbs/750 g potatoes
• 1 tablespoon flour
• 3 eggs
• 1 tablespoon butter
• 1 cup milk
• Salt
• Meat filling (finely chopped onion fried in two tablespoons of vegetable oil until turns yellow; add the ground meat, salt and pepper, mix and cook for 20min.)

Peel the potatoes, boil them, crush with the potato press. Place in a bowl. Add warm butter, salt, milk, mix well, then add flour and the yolks and the whipped egg whites at the end. Place half of this mixture in a buttered and bread crumbed pudding mold, then place the meat filling and finally the other half of the mixture. Dot with butter, bread crumbs and bake until brownish. Serve warm.