This crockpot apple cinnamon oatmeal cooks all night while you sleep, so a warm, creamy breakfast is waiting the moment you wake up. Sweet apples and cinnamon melt right into the oats as they simmer low and slow. It’s the closest thing to a hot breakfast made by someone else.

Table of Contents
Why You’ll Love This Crockpot Apple Cinnamon Oatmeal
- Zero morning effort. Everything goes into the crockpot before bed, so breakfast is completely done when you wake up.
- Naturally sweet. The apples soften and sweeten the whole pot, so you need very little added sugar.
- Great for meal prep. Portion it into containers for grab-and-go breakfasts all week.
What You’ll Need
- 1 1/2 cups steel-cut oats — steel-cut oats hold their texture over a long cook time; old-fashioned or quick oats will turn to mush.
- 4 cups liquid (2 cups milk and 2 cups water) — the water keeps the oats from drying out or scorching; use any milk you like, dairy or non-dairy.
- 3 medium apples, cored and diced — firm baking apples like Honeycrisp, Fuji, or Gala hold their shape best.
- 1 1/2 teaspoons ground cinnamon — the backbone flavor of the whole dish.
- 1/4 teaspoon ground nutmeg — a small warm-spice boost that pairs naturally with cinnamon.
- 3 tablespoons brown sugar — just enough to sweeten; taste and adjust once it’s cooked.
- 1/4 teaspoon salt — balances the sweetness.
- Nonstick spray, for the crock — oats stick and scorch at the edges without it.
How to Make Crockpot Apple Cinnamon Oatmeal
- Grease the inside of a 3- to 4-quart crockpot generously with nonstick spray.
- Add the diced apples to the bottom of the crock, then sprinkle the cinnamon, nutmeg, brown sugar, and salt over them.
- Pour the steel-cut oats over the apples in an even layer, then pour the milk and water on top. Do not stir.
- Cover and cook on LOW for 7 to 8 hours, without lifting the lid, until the oats are tender and creamy.
- Stir well before serving, and add a splash of extra milk if you like it looser.
Tips for Success
- Don’t lift the lid. Every peek lets out heat and adds cooking time. Set it and walk away until morning.
- Use a smaller crockpot. A 3- to 4-quart crockpot cooks oatmeal more evenly than a large 6-quart one, where the edges can scorch before the center is done.
- Grease it well. This is the step people forget, and it’s why oatmeal sticks to the sides. A generous coat of nonstick spray makes cleanup much easier.
Variations to Try
- Pumpkin spice swap. Replace the apples with 1 cup pumpkin puree and swap the cinnamon for pumpkin pie spice.
- Nutty crunch. Stir in 1/2 cup chopped pecans or walnuts right before serving for texture.
- Dried fruit mix-in. Add 1/2 cup raisins or dried cranberries along with the apples for extra sweetness.
- Skip the extra brown sugar and top each bowl with a spoonful of our Crockpot Apple Butter instead.
What to Serve With Crockpot Apple Cinnamon Oatmeal
A bowl of this oatmeal is filling on its own, but a splash of extra milk and a handful of chopped nuts turn it into something special.
For a bigger breakfast spread, set it out alongside Healthy Apple Cinnamon Muffins — you’ll have the whole kitchen smelling like a bakery.
It also keeps well for meal prep, so pair it with our Baked Oatmeal Cups for two different make-ahead breakfast options in the fridge at once.

FAQs
Can I make crockpot apple cinnamon oatmeal ahead of time?
Yes — this is a great meal-prep breakfast. Portion cooled oatmeal into containers and refrigerate for up to 5 days, or freeze individual portions for up to 3 months.
Why is my slow cooker oatmeal mushy?
This usually means old-fashioned or quick oats were used instead of steel-cut. Steel-cut oats are firmer and built to hold up over a long, slow cook — the other kinds break down too fast.
Can I use water instead of milk?
You can, though the oatmeal will taste less rich. If you go all-water, stir in a splash of milk or cream at serving time to bring back some creaminess.
How do I reheat leftovers?
Add a splash of milk or water to loosen it up, then microwave in 30-second bursts, stirring between each, or warm it gently on the stovetop over medium-low heat.
Final Thoughts
There’s something so comforting about waking up to a breakfast that’s already made. This crockpot apple cinnamon oatmeal turns a handful of pantry staples into a warm, cozy start to the day.
Set it up tonight, and let tomorrow morning take care of itself.

Crockpot Apple Cinnamon Oatmeal
Ingredients
- 1 1/2 cups steel-cut oats
- 2 cups milk dairy or non-dairy
- 2 cups water
- 3 medium apples, cored and diced Honeycrisp, Fuji, or Gala
- 1 1/2 tsp ground cinnamon
- 1/4 tsp ground nutmeg
- 3 tbsp brown sugar
- 1/4 tsp salt
Instructions
- Grease the inside of a 3- to 4-quart crockpot generously with nonstick spray.
- Add the diced apples to the bottom of the crock, then sprinkle the cinnamon, nutmeg, brown sugar, and salt over them.
- Pour the steel-cut oats over the apples in an even layer, then pour the milk and water on top. Do not stir.
- Cover and cook on LOW for 7 to 8 hours, without lifting the lid, until the oats are tender and creamy.
- Stir well before serving, and add a splash of extra milk if you like it looser.