Apple Puff Omelet

This is a baked apple omelete dish.
I like it a lot with mapple syrup.

Ingredients:
2 large apples, peeled, cored and thinly sliced
1/4 cup sweet butter or margarine
1/4 cup brown sugar
1 tsp. ground cinnamon
4 large eggs
1/4 cup sugar
1/4 tsp. cream of tartar
1 Tbsp. confectioners' sugar (optional)

Directions:
Preheat oven to 450 degrees F.
Heat butter in a skillet and sautee the apples
for 5 minutes over low heat.
Mix together brown sugar and cinnamon.
Sprinkle over apples. Toss and continue to sautee
apples for about 10 minutes, until they caramelize.
The mixture will be thick and syrupy.
Spoon mixture into an 8X8-inch
baking dish and keep hot in the oven.
Separate eggs. Whisk yolks and the granulated
sugar in a small bowl until fairly thick.
In a large bowl, beat egg whites with
cream of tartar until stiff and shiny.
Fold into yolk mixture, a third at a time.
Pour egg mixture over the apples
and bake for 8-10 minutes.
The omelet will be puffed and golden.
Remove from the oven and
sprinkle with confectioners' sugar.
Serve immediately.