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Throw the ingredients in your slow cooker before bed and you’ll have warm overnight apple cinnamon oats ready when you wake up!

apple cinnamon oats in white bowl with spoon
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These slow cooker overnight apple cinnamon oats pack all the flavors of Fall into a warm, cozy bowl. They’re loaded with all the Fall flavors that you’re accustomed to such as cinnamon, apples, and pecans. I love how easy this comes together as well. It’s nearly hands-off and you wake up in the morning to the most amazing smell in your house. It’s like having a house full of Bath and Body Works candles.

I remember when I first wrote this recipe, overnight oats were just becoming a thing and it’s interesting years later, they are still ever-so popular.

There are so many unique “flavors” out there now and even I’ve got some:

maple syrup being poured on apple cinnamon oats in a white bowl

Why slow cooker overnight apple cinnamon oats?

Well, in general, overnight oats are one of my favorite things to make because it’s so hands off.

The best way to utilize this is when you’re having overnight guests.

Everyone wakes up at different times and instead of being concerned about, “what’s for breakfast?” if you have a batch of slow cooker overnight apple cinnamon oats ready when everyone wakes up, they can serve themselves a bowl with their coffee.

It helps the entire household out and you won’t have any hangry guests or anyone rummaging through your pantry for something to tame that hunger!

apple cinnamon oats with cubed apples and pecans in a white bowl and spoon

What You’ll Need:

  • Apple – fresh apples! I would go for Fuji, Gala, Honeycrisp, or whatever variety you like. I would stay away from Red Delicious (I think the exterior is too waxy) and Granny Smiths.
  • Milk – cow’s milk or dairy-free works!
  • Apple Cider – please, NOT apple cider vinegar. Apple cider!! If you can’t find apple cider, you can substitute for apple juice.
  • Steel cut oats – I love the texture of steel cut oats and it’s the perfect candidate for an overnight slow cooker oats recipe such as this because it doesn’t get super mushy and steel cut oats typically take longer to cook anyway.
  • Brown sugar – dark brown sugar to be exact. I love the depth of flavor the dark brown sugar gives.
  • Ground cinnamon
  • Ground flaxseed – for that extra fiber, ya know?
  • All the toppings – nuts, maple syrup, more apples, and do you dare add some whipped cream?!

Can I use another fruit?

You could but this is for apple cinnamon oats so maybe another hard fruit that compliments apples well?

How to make overnight apple cinnamon oats:

Spray the insert of your slow cooker. You definitely don’t want to miss this step otherwise you’ll be scrubbing the insert for a bit! You can also use a slow cooker liner if you prefer.

Add the ingredients. Add all the ingredients (apples, milk, apple cider, water, oats, brown sugar, ground cinnamon, ground flaxseed) to the insert of the slow cooker.

Stir, cover, and cook on low for 3-4 hours. You can cook this on high for half the amount of time too. It’s okay if this cooks for a bit longer (hence overnight). Just add some liquid in and stir and it’ll be all good!

overhead shot of white bowl with apple cinnamon oats and toppings (pecans and fresh apples)

What’s the difference between steel cut oats and old fashioned oats/rolled oats or quick cook oats?

It comes down to texture, processing, and cooking time.

Steel cut oats are oat groats that have been cut into two or three pieces and they’re relatively unprocessed while old fashioned/rolled oats are made by steaming and rolling the oat groats for faster cooking. Quick cook oats are the same but cut into smaller pieces for even faster cooking.

Can I make this in the Instant Pot?

I haven’t tried this with the pressure cooking function but the slow cooker function on the Instant Pot would work.

a closer overhead shot of white bowl with apple cinnamon oats and toppings (pecans and fresh apples)

Is it safe to have a slow cooker run overnight?

Absolutely. People leave their slow cookers on during the day to cook their meals.

Again, freakier things have happened so I’m not liable for anything.

I kept waking up in the middle of the night from the apple cinnamon smell but it didn’t bother me – my stomach was what was bothering me! It was wanting some of that oatmeal!

I’m going to be making more varieties of this in my crockpot because of all the leftovers I get with it. I love scooping a hefty amount in Tupperware and bringing it into work for a warm breakfast. It’s filling too so I’m not starving by 11am.

4.44 from 16 votes

Slow Cooker Overnight Apple Cinnamon Oats

Throw the ingredients in your slow cooker before bed and you’ll have warm overnight apple cinnamon oats ready when you wake up!
Prep Time: 15 minutes
Cook Time: 4 hours
Total Time: 4 hours 15 minutes
Servings: 4



  • 3 apples, cored and cut into ½ inch cubes
  • 1 ½ cup (366 g) 2% milk
  • 1 cup (236 g) apple cider
  • ½ cup (118 2/7 g) water
  • 1 cup (160 g) steel-cut oats, heaping
  • 2 tablespoon dark brown sugar
  • ½ teaspoon ground cinnamon
  • 1 tablespoon ground flax seed
  • ¼ teaspoon salt
  • Optional garnishes: nuts,dried fruit, bananas
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  • Coat the inside of your crockpot generously with cooking spray. You will NOT want to miss this step cause otherwise you will be standing over the sink scraping the little sucker.
  • Add all the ingredients to the crockpot (minus the garnishes), stir, cover, and cook on low for 3-4 hours or high for 1.5-2 hours.
  • Serve hot and with garnishes, if desired.
  • To reheat: put oatmeal in microwave-safe bowl and add a splash or two of milk to re-moisten it up. Zap it for 30 seconds, take it out, stir it around, then zap for another 10-20 seconds.



Serving: 1Serving, Calories: 240kcal, Carbohydrates: 48g, Protein: 6g, Fat: 4g, Fiber: 6g, Sugar: 31g

This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition information can vary for a variety of reasons. For the most precise nutritional data use your preferred nutrition calculator based on the actual ingredients you used in the recipe.

The default measuring system for this website is US Customary. Unit conversions are provided for convenience and as a courtesy only. While we strive to provide accurate unit conversions, please be aware that there may be some discrepancies.

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Photography by Eat Love Eats

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    1. you’re right – I miscalculated when i updated the recipe. the previous version did take 7 hours but this updated version doesn’t. thanks for bringing that to my attention!

  1. Have made this with apples many many times. It’s my grand daughter’s absolute favorite. However, the last time I substituted frozen peaches and tangerine/peach juice (everything else remained the same) and it was delicious. Also, I always follow another poster’s advice and let it cook on low until bedtime then switch to warm. It’s never failed to be perfect in the morning.

  2. This is our Christmas Eve/Christmas morning tradition for at least 3 years running now. :) My son thinks overnight oats are exclusively a Christmas thing haha. We wake up to our house smelling amazing and this is ready to go when aunties and grandparents come over after seeing what Santa brought! Thanks for giving us a fun tradition that feels special but is still a healthy and easy start to everyone’s day.