Instant Pot Apple Cinnamon Oatmeal

Ingredients

• 2 tablespoons unsalted butter or coconut oil
• 1 1/2 cups steel cut oats
• 4 1/2 cups water
• 1 large Granny smith apple or other firm apple, peeled and diced (about 1 1/2 cups diced)
• 1/4 cup brown sugar or maple syrup
• 1 teaspoon ground cinnamon
• 3/4 teaspoon salt
• Butter
• Brown sugar or maple syrup
• 3/4 cup toasted, chopped nuts (pecans or walnuts)