Neapolitan Sandwiches in the Pizza Oven

Ingredients

• Parmesan Oil

  • 1/3 cup (75 ml) olive oil
  • 3 tbsp fresh Parmesan cheese, grated
  • 4 garlic cloves, finely chopped
  • 2 tsp rosemary, finely chopped
  • 1/2 tsp red pepper flakes

• Sandwiches

  • 4 balls pizza dough (by hand)
  • 1 cup (250 ml) ricotta cheese, at room temperature
  • 1/4 cup (35 g) unsalted shelled pistachios, chopped
  • 1 lemon, zest finely grated
  • 1/2 lb (225 g) pistachio mortadella, thinly sliced (see note)
  • 2 cups (50 g) arugula