this is an old childhood favorite that my mom used to make when my sister and i were little. we called it “mystery pie” because right when people started to eat it, we would reveal the big mystery… “do you know what’s in it?? crackers!” we had a lot of fun with that one 
mystery pie
3 egg whites
1 cup sugar
1 teaspoon baking powder
1 teaspoon vanilla
½ cup chopped nuts
20 ritz crackers, crushed
1. beat the 3 egg whites until they are stiff.
2. gradually add in the rest of the ingredient.
3. bake 20 minutes at 350 degrees
topping:
½ pint whipping cream – rum or vanilla flavored