Overnight Breakfast

Slow Cooker Pumpkin Pie Oatmeal

Steel-cut oats, pumpkin puree, water and milk left on Low overnight, then stirred hard at the end to bring the whole pot together.

7 hrs 10 min · 6 servings · slow cooker

Bowl of creamy pumpkin pie oatmeal cooked in the slow cooker

About Darleen

on Recipesdarleen

Darleen is a mom who turned her slow cooker into a lifesaver, sharing cozy, easy-to-make recipes that bring comfort to busy days.

268 recipes by Darleen Vance

Published August 12, 2025 · Updated August 25, 2026

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Steel-cut oats cooked slowly with pumpkin puree, maple and warm spice, so breakfast is finished before anyone is awake.

Ten minutes at night, six to seven hours on Low, and a good stir in the morning.

Why This Recipe Works

  • Water and milk together rather than either alone. All water gives a thin, plain porridge; all milk over seven hours scorches and tightens. Four to two is the balance that stays creamy.
  • A whole 15-ounce can of pumpkin across six servings is a lot, and it is what gives the oatmeal its body as well as its flavour — the puree thickens the pot as much as the oats do.
  • Two teaspoons of cinnamon plus a teaspoon of pumpkin pie spice is deliberately generous. Long, slow, moist cooking mutes spice, so a quantity that would be too much in a quick porridge is right here.
  • Half a teaspoon of salt in a sweet breakfast is doing the same job it does in any baked good — without it the maple and pumpkin read as flat rather than sweet.

Four Steps, and One That Actually Matters

This is a dump-and-leave recipe with only four instructions, and three of them are trivial. The fourth is where the texture is decided, and it happens after the cooking is over.

  • Before anything

    Grease the crock

    Oats and milk over seven hours form a skin that welds to the sides. This costs ten seconds and saves the washing up that otherwise defines this recipe.

  • Step 2

    Everything in at once

    There is no layering and no order here. Steel-cut oats do not clump the way flour does, and seven hours is long enough for anything to distribute itself.

  • Steel-cut only

    The timing depends on it

    Six to seven hours is calibrated to whole, cut grain. Rolled oats are already steamed and pressed flat and would be paste in a fraction of that; quick oats would disappear entirely.

  • After the cook

    Stir thoroughly — this is the step people skip

    Overnight the pot separates: a dense layer at the bottom, thinner liquid above, and a skin on top. It looks wrong when you lift the lid. A hard stir brings it back into one creamy pot, and that stir is the difference between this working and not.

  • After stirring

    Loosen with milk if it needs it

    How thick it comes out depends on the cooker and on how long it actually ran. The recipe builds this in rather than pretending the result is fixed — judge it after stirring, not before.

Ingredient Notes

Steel-cut oats
A cup and a half, steel-cut and nothing else. The whole six-to-seven-hour timing is built around them.
Pumpkin puree
A 15-ounce can. Puree rather than pie filling — pie filling is pre-sweetened and pre-spiced and would double up on both.
Milk
Two cups, alongside four of water. Any milk works; the split with water is what keeps it from catching over a long cook.
Maple syrup
A third of a cup across six servings. Real maple rather than pancake syrup, which reads as one-dimensionally sweet here.

How to Make It

  1. Grease the cooker

    Grease the slow cooker.

  2. Combine everything

    Add the steel-cut oats, pumpkin puree, water, milk, maple syrup, cinnamon, pumpkin pie spice, vanilla and salt, and stir to combine.

  3. Cook

    Cook on Low for 6 to 7 hours, until the oats are tender and the pot is creamy.

  4. Stir and adjust

    Stir thoroughly to bring the pot back together, and loosen with a little more milk if needed.

Success Tips

  • Steel-cut oats only.
  • Grease the crock before anything goes in.
  • Stir hard in the morning before you judge the texture.
  • Keep milk on hand to loosen it.

Serving Ideas

It is a plain, warm base and takes well to whatever is around — chopped nuts, a spoonful of yogurt, more maple, sliced banana. A pot feeds six, so it is a practical thing to make when the morning is busy.

Storage and Reheating

Refrigerate

Refrigerate up to 5 days. It sets firm when cold, which is normal for steel-cut oats, and portions cleanly for the week.

Freeze

Freezes well in portions up to 3 months. Thaw overnight and reheat with a splash of milk.

Reheat

Add a splash of milk and warm gently on the stove or in a microwave, stirring once. Cold oatmeal reheated dry goes stodgy.

Frequently Asked Questions

Can I use rolled oats instead?

Not on this timing. Rolled oats are steamed and pressed and would break down to paste in a fraction of six hours. This recipe is built around whole steel-cut grain and there is no adjustment that makes rolled oats survive an overnight cook.

It looked separated and watery in the morning.

That is expected and it is what step 4 exists for. Overnight the pot settles into layers with a skin on top; a thorough stir brings it back into one creamy mass. Judge the thickness only after stirring.

Can I make it dairy-free?

Yes — swap the two cups of milk for an unsweetened plant milk and keep everything else. Oat and almond both work; the water proportion stays the same.

Recipesdarleen

Slow Cooker Pumpkin Pie Oatmeal

Steel-cut oats, pumpkin puree, water and milk left on Low overnight, then stirred hard at the end to bring the whole pot together.

Prep
10 min
Cook
7 hrs
Total
7 hrs 10 min
Yield
6 servings

slow cooker

EquipmentSlow cooker

Before you startCheck that you have steel-cut oats and not rolled. It is the one substitution this recipe cannot absorb: the six-to-seven-hour window exists because steel-cut grain is whole and slow, and rolled oats in the same pot are gluey within two hours.

Ingredients

Instructions

  1. Grease the slow cooker.
  2. Add the steel-cut oats, pumpkin puree, water, milk, maple syrup, cinnamon, pumpkin pie spice, vanilla and salt, and stir to combine.
  3. Cook on Low for 6 to 7 hours, until the oats are tender and the pot is creamy.
  4. Stir thoroughly to bring the pot back together, and loosen with a little more milk if needed.