1 1/4 cups mayonnaise
1/4 cup distilled white vinegar
1 tablespoon white sugar
1 (1 ounce) square unsalted butter or margarine, melted
6 eggs, beaten
1 tablespoon cornstarch
1 teaspoon milk
1 teaspoon vanilla extract
1/2 teaspoon salt
1 cup milk
1 tablespoon butter or margarine
2 tablespoons cheese spread
1 onion, sliced
Preheat oven to 350 degrees F (175 degrees C).
In a large bowl, mix mayonnaise, vinegar, sugar, melted butter, eggs, cornstarch, milk, vinegar mixture, and sugar.
Mix spread into a 9x5 inch loaf pan and bake in preheated oven until edges are golden brown, about 20 minutes. Place oat bread in baking dish and pour egg mixture over top of oats.
Line a baking sheet with parchment paper. Spread marinated bread out pizza crust over parchment. Cover pan with foil and bake out on center rack of oven. Cool completely.