All Recipes, Main course, The Best Instant Pot Mac and Cheese Recipe Ingredients 1 lb elbow macaroni 2 cups water 2 cups chicken broth 1 tsp dry mustard 1 ½ tsp kosher salt ½ tsp black pepper 1 cup whole milk 16 oz sharp cheddar cheese, shredded 2 Tbsp butter ¼ tsp nutmeg Go to the next page to get the Instructions