Ingredients
- Pizza Dough: 1 lb (455 g), left out at room temperature for 15-20 minutes
- American Cheese: 7 slices, cut in half
- Frozen Mini Meatballs: 14, thawed
- Baking Soda: 1/4 cup (45 g)
- Water: 5 cups (1.2 L)
- Egg: 1, beaten
- Coarse Sea Salt: For sprinkling
- Yellow Mustard: For serving (optional)
