Cacio e Pepe Risotto – DelicioUS!

Ingredients

• 1 tbsp olive oil
• 4 tbsp unsalted butter, divided
• 1 shallot, peeled and finely minced
• 2 tsp freshly ground black pepper
• 195g medium-grain rice
• 118ml dry white wine
• 1,4 l chicken or vegetable stock (preferably homemade), warmed
• 30g freshly grated parmesan
• 45g freshly grated pecorino romano cheese
• 2 tbsp mascarpone cheese
• kosher salt, to taste
• lemon slices, for serving