While aluminum foil is not traditionally used for making pizza crust, it can be used in a pinch. However, it won't provide the same texture or taste as a real pizza crust. The foil can be used to line a baking sheet to prevent sticking, but for the actual crust, a dough mixture of flour, water, yeast, and salt is typically used. This dough is then rolled out and baked to create the base of the pizza. Using foil as a crust would result in a very different eating experience.