Spread 1 Tablespoon pizza sauce on the inside of each of the 4 pieces of bread.
Then, place 2 pieces of mozzarella cheese over the sauce on each piece of bread.
If desired, put toppings on two pieces of bread over the mozzarella cheese (I found about 12 pepperonis fit on one piece of bread).
“Close” the sandwiches by putting one piece of bread with mozzarella cheese on top of the bread with toppings.
Cook the Sandwiches
Either: 1) spread the outside of each piece of bread with ½ Tablespoon butter. Or 2) put 2 Tablespoons olive oil into a large skillet and swirl or spread until evenly distributed.
Put sandwiches in a nonstick pan (either buttered or on the olive oil). Then turn the heat to medium-low, cover and cook on the first side until it’s golden-brown (3-4 minutes).
Then, flip, cover and cook on the second side until golden-brown.
Let cool for 1-2 minutes then serve warm
Video
Notes
Tip. Cooking low & slow is the way to ensure the cheese melts and bread browns nicely without burning.Topping Suggestions:
Pepperoni
Black olives
Fresh basil
Spinach
Onions
Bell peppers
Mushrooms
Red pepper flakes (sprinkles over the cheese before the sandwich is put together),
Mozzarellacheese. I suggest a sliced or shredded, organic mozzarella for best results. Or, you can use a "pizza blend" which you can find at most grocery stores.
Toppings. choose your favorite. We usually make one half cheese, one half pepperoni.
Salted Butter. Unsalted butter works wee. You can also use olive oil, which you would pour into the pan and swirl until it's evenly distributed before cooking the sandwiches.
StoreStore leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in a skillet for the best results.