Onion pie

Dough

• 4 cups all-purpose flour
• 150 g Claybom cheese spread
• 1 tablespoon salt, coffee spoon (about 1/2 teaspoon)
• 3 egg yolks

• 2 onions, regular-sized, grated
• 100 g Claybom cheese spread, to fry with the onion
• 2 bars Knorr bouillon, dissolved in 1 1/2 glasses milk
• 1½ glasses milk
• 3 egg yolks, for the cream
• 1 tablespoon cornstarch, dessert spoon
• 1 can heavy cream, without whey