Slow Cooker Overnight Oats with Apple & Cinnamon

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Mornings can be hectic, so this make-ahead recipe for Slow Cooker Overnight Oats with apple and cinnamon means one less thing you need to do before you start your day. As an added bonus, this healthy and delicious overnight breakfast recipe will have your house smelling like freshly baked apple pie when you wake up in the morning!

A blue bowl of apple cinnamon oats, topped with pieces of apple and walnuts and a couple of cinnamon sticks on the table beside the bowl. Text overlay says"Overnight Recipe! Slow Cooker Apple-Cinnamon Oatmeal" Similar photos of the recipe/dish from various angles are used throughout and with different text overlay unless otherwise described.

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Slow Cooker Overnight Oats

The full ingredients list and instructions are found in the printable recipe card at the end of this post. I highly recommend reading the blog post all the way through so that you don’t miss any tips or substitution suggestions and to ensure that you have all the ingredients and equipment required as well as understand the steps and timings involved.

If you find yourself rushing around in the mornings with barely a moment to enjoy breakfast, then this might be the recipe for you.

On cold mornings there is nothing nicer than a warming bowl of oatmeal, and unlike other overnight oats which are often served cold (and great in the hotter months!), for fall and winter, hot oats are the way to go.

Waking up to a house smelling of apple pie is a good thing, and that is what is going to happen when you make these slow cooker overnight oats!

With breakfast ready to serve, just grab a bowlful, add some toppings and enjoy before going on with your day.

Steel-cut oats are used in this recipe. They are also known as pinhead oats, coarse oatmeal (UK) or Irish oatmeal. Make sure you read through the tips section because you do not want to miss them!

Steel-cut oats are groats (the inner kernel with the inedible hull removed) of whole oats which have been chopped into two or three pinhead-sized pieces (hence the names; “steel-cut” comes from the steel blades). The pieces can then be sold or processed further to make rolled oat flakes, of a smaller size than flakes of whole groats. Steel-cutting produces oatmeal with a chewier and coarser texture than other processes.


This recipe uses American cups. They’re a handy piece of kitchen equipment to have along with a kitchen food scale. Having both in your kitchen means you’ll be able to make all of the different recipes on my blog as I use both cups and weighted measures.

Steel-cut Oats

More Recipes Using Apples

One of the hero ingredients in this recipe is apples, so here are some more recipes using the same:

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Slow Cooker Apple-Cinnamon Overnight Oatmeal

Slow Cooker Overnight Oats Recipe Tips

  • This slow cooker oats recipe will ONLY work with regular steel cut oats. Any other kind of oatmeal – quick-cooking steel cut oats, regular rolled oats, quick oats, instant oatmeal, etc., – cannot stand up to the long cooking time and will turn into complete mush.
  • Before turning on your slow cooker and making this recipe you need to VERY GENEROUSLY grease the pot with nonstick spray.
  • Or better yet, use a slow cooker liner. Steel-cut oats like to stick and you will really have a tough time cleaning your pot if you don’t take these measures!
  • Every slow cooker is different, and if your slow cooker runs hot you may want to experiment with making these oats during the day the first time you make. You can see how they turn out after a certain amount of time and can keep an eye on them. You can then reheat the next day for breakfast.
  • If your slow cooker has an auto-off or keep warm function, make use of that after the cooking time is finished.
  • You can store these steel-cut overnight oats, covered in the fridge for up to 5 days – just mix your portion of oats with a little water or milk and warm through in the microwave.
  • You can also cover and freeze for up to 2 months. Freeze in portions and defrost in the fridge overnight to enjoy in the morning.

More Breakfast Recipes

Looking for more breakfast inspo? Check these recipes out next:

There are 500+ Recipes on The Purple Pumpkin Blog for you to enjoy – please feel free to check them out too!

How Do I Make Slow Cooker Overnight Oats?

Just check out the recipe card below with full ingredients, and instructions. You can print the card out too (don’t worry, the pics don’t print to save your ink!).

Slow Cooker Overnight Oats with Apple & Cinnamon

Slow Cooker Overnight Oats with Apple & Cinnamon

Yield: 4-6
Prep Time: 10 minutes
Cook Time: 8 hours
Total Time: 8 hours 10 minutes

Get ahead in the mornings with this breakfast recipe! Slow cooker oatmeal with apple and cinnamon smells amazing when you wake up!


  • 1 cup steel-cut oats
  • 3 cups water
  • 1 cup fresh apple cider
  • 2 medium apples, cored and diced
  • 1½ Tbsp honey, preferably local
  • 1 tsp ground cinnamon
  • ½ tsp ground nutmeg
  • ½ tsp ground allspice
  • ½ tsp salt, to taste

To Serve

  • 1 medium apple, cored and diced
  • ½ cup pecans, chopped
  • Real maple syrup


  1. Grease slow cooker pot very well non-stick cooking spray, or use a slow cooker liner.
  2. Add oats, water, cider, apples, honey, cinnamon, nutmeg, allspice, and salt to slow cooker and stir to combine.
  3. Cover and cook on low for 7-8 hours.
  4. To serve, allow the oats to cool slightly before spooning into bowls and topping with fresh chopped apples, pecans, and some real maple syrup if desired.
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It very important to either line or heavily grease the sides of your slow cooker crock before preparing this recipe. If you skip this step, the oats will stick to the sides and will be very difficult to remove.

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Nutrition Information:
Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 265Total Fat: 8gSaturated Fat: 1gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 0mgSodium: 204mgCarbohydrates: 46gFiber: 7gSugar: 22gProtein: 5g

This site uses Nutritionix to provide estimated nutrition. Nutritional information is always approximate and will depend on the quality of ingredients used and serving sizes. If you need exact calories and macros, please do your own calculations.

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