This Instant Pot Cacio e Pepe recipe is the easiest, creamiest, 5 ingredient cacio e pepe recipe you could want!
Pour 3 ½ cups water into the Instant Pot. Break 1 lb. of spaghetti in half then place in the Instant Pot and add 1 ½ teaspoons salt. Add 4 tablespoons of butter, cut into cubes.
Lock the lid and set the pressure release to Sealing. Select the Manual setting and set the timer to 5 minutes.
While the pasta cooks, grate 3 cups parmesan (if not pregrated) and grind 2 teaspoons black pepper into a small bowl. Cut remaining 6 tablespoons butter into cubes.
When the timer goes off, move the pressure release knob to Venting, using a towel to protect your hand. Press cancel to reset the cooking method, then open the pot and select the Saute setting.
Add the parmesan, pepper, and remaining butter. Allow to cook for several minutes until sauce has thickened and coated the spaghetti. Taste and add more salt and pepper to taste.
Serve warm, topped with an extra sprinkle of parmesan and black pepper.