1 1/4 cups margarine
4 medium all-purpose flour
1 teaspoon baking powder
1 cup whole wheat flour
1/2 teaspoon baking soda
1/4 teaspoon salt
1/4 teaspoon baking powder
1 1/2 cups milk
1/2 teaspoon vanilla extract
1 large round Brie cheese
Preheat oven to 350 degrees F (175 degrees C).
Place margarine in a medium saucepan. Fry on medium heat until starting to brown. Remove from heat. Stir in the flour mixture. Let melt. Mix in the whole wheat flour mixture. Stir in the baking powder, whole wheat flour, baking soda, milk and vanilla extract. Mix thoroughly. Spread on a 9 inch round (approximately 4 inches square).
Bake in preheated oven 10 minutes, or for lukewarm lasagna 1 hour.