Forgotten Pudding - cooking recipe

Ingredients

2 teaspoons vanilla
3/8 teaspoon cream of tartar
1 1/2 cups egg whites (8 to 10 eggs)
1/2 teaspoon grated lemon peel (or lime peel)
1 1/2 cups sugar, plus extra for coating
1 (12 1/4 ounce) jar caramel topping
custard, sauce (such as Custard Sauce)

Preparation

Preheat the oven to 500 degrees F.
Beat the egg whites until stiff with cream of tartar and grated peel, add sugar slowly then the vanilla.
Slightly grease a ring mold then coat with granulated sugar, shaking out the excess.
Spoon in meringue and cut through with a knife, shake to even the batter, remove any air pockets. Put mold into a shallow pan of hot water and place into the oven.
Turn off the oven and leave the meringue in for at least 2 hours without opening the door at any time.
Finally, unmold the meringue, pour hot caramel over it and serve with chilled custard sauce.