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Bowl of healthy apple cinnamon oatmeal made with steel cut oats and topped with cinnamon and chunks of apple, and a dollop of peanut butter.
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4.09 from 62 votes

Apple Cinnamon Steel Cut Oatmeal

Apple cinnamon oatmeal made with steel cut oats and filled with soft apple chunks. You can make this oatmeal in your slow cooker or Instant Pot for a warm, filling breakfast that's loaded will fall flavors.
Prep Time10 minutes
Cook Time6 hours
Total Time6 hours 10 minutes
Course: Breakfast
Cuisine: American
Keyword: Instant Pot apple cinnamon oatmeal, slow cooker apple cinnamon oatmeal
Servings: 4


  • cooking spray butter or coconut oil
  • 1 cup steel cut oats
  • 2 cups water
  • 2 cups unsweetened vanilla almond milk
  • 1 cup chopped apple pieces
  • 1 Tablespoon maple syrup + 5 drops of liquid stevia or other sweetener of choice
  • 1 teaspoon vanilla
  • 1 teaspoon cinnamon
  • ¼ teaspoon salt
  • toppings: chopped nuts nut butter, extra maple syrup, coconut sugar


Slow Cooker Method

  • Coat slow cooker with cooking spray, butter or coconut oil. Add all the ingredients besides the toppings into slow cooker and mix well. Cook on low for 6-8 hours. Place in a bowl to serve and sprinkle on toppings of choice.

Instant Pot Method

  • Add all ingredients except the toppings to your Instant Pot, but be sure to only use 2 cups of liquid (water or almond milk) instead of 4 cups. Cover with the lid and turn the vent to "sealing." Press the manual button and set time to 4 minutes on high pressure. The Instant Pot will automatically start. Once done cooking, allow the pressure to naturally release. Once all the pressure has released carefully remove the lid and stir the oatmeal and serve.

How to Reheat

  • Let the oatmeal cool and place in a sealed container in the fridge for up to a week. You can reheat the oatmeal on the stovetop or microwave. Just add a little additional milk to loosen the oatmeal, if needed.



  • The big difference between cooking the apple cinnamon oatmeal in the slow cooker and the Instant Pot is the amount of liquid. For the slow cooker you need 4 cups of liquid and for the Instant Pot you only need 2 cups. It can be water or almond milk, whichever you prefer. Almond milk will make for creamier oatmeal.


Serving: 1/4 of recipe without toppings | Calories: 158kcal | Carbohydrates: 26g | Protein: 5g | Fat: 4g | Fiber: 4g | Sugar: 3g