Instant Pot® Buffalo Chicken Pasta

Ingredients (11)

• + 2 tablespoons salted butter add to pantry
• + 1 ½ pounds skinless, boneless chicken breast, cut in bite-sized pieces add to pantry
• ✓ ½ medium onion, finely chopped
• + 3 ½ cups chicken stock add to pantry
• + 1 (16 ounce) package penne pasta add to pantry
• + ½ teaspoon salt add to pantry
• + ¼ teaspoon garlic powder add to pantry
• + 1 (8 ounce) package cream cheese, cubed add to pantry
• + ⅓ cup Buffalo wing sauce add to pantry
• + 1 cup shredded mozzarella cheese add to pantry
• + 2 tablespoons crumbled blue cheese, or to taste add to pantry