Steel cut oats cook perfectly in the pressure cooker, without any kitchen disasters. And without a terrible mess! In the fall and winter, I make this hearty version with steel cut oats, apples, and cinnamon. It’s the ideal breakfast to warm you from head to toe on chilly mornings.

Steel Cut Oats in the Pressure Cooker

Steel cut oats normally cook for upwards of a half hour on the stove, with constant stirring required. It takes about the same amount of time in the pressure cooker (I love my Instant Pot!), except you get to walk away while the oats cook themselves. I just love that!

New to the Instant Pot? Check out our post How To Use an Instant Pot: A First-Timer’s Guide.

What Kind of Apples to Use

Since the pressure cooker breaks down ingredients so efficiently, you want to use apples that can hold up to all of that cooking power. Granny Smiths are my apple of choice, but any firm baking apple or even firm pears or quinces should do the trick. For more information on which apple varieties are best for baking, check out our Guide to Apples.

A Tip for Tastier Oats

Whenever I make steel cut oats, I take the extra step of toasting the oats in a little bit of butter or coconut oil using the pressure cooker’s sauté setting. This adds a bit of toasty flavor and makes the house smell amazing, too.

How to Reheat Pressure Cooker Oatmeal

This recipe makes quite a bit and you may have leftovers. The easiest way to reheat an individual serving of oatmeal is in the microwave. Heat in a microwave-safe bowl for 2 to 3 minutes, until piping hot. The oatmeal will have thickened—stir in a splash of milk to thin it out again. Serve up your oatmeal with butter (or coconut butter for a dairy-free option), a little brown sugar or maple syrup, and some chopped nuts for a little crunch.

More Easy Breakfasts

Pressure Cooker Egg Bites Granola in the Slow Cooker Freezer Breakfast Burritos with Sausage, Eggs, and Salsa Verde Grab-and-Go Oatmeal Chia Cups Omelette in a Mug

If you’re using a stovetop pressure cooker, you may have more issues with scorching, as well as clogging the pressure release, since they cook at higher pressure.  Cook time for a stovetop cooker would be for ten minutes shorter and allow the pressure to release naturally and completely before opening, to avoid any risk of a bubbly mess.

2 tablespoons unsalted butter or coconut oil 1 1/2 cups steel-cut oats 4 1/2 cups water 1 large Granny Smith apple or other firm apple, peeled and diced (about 1 1/2 cups diced) 1/4 cup brown sugar or maple syrup 1 teaspoon ground cinnamon 3/4 teaspoon salt

For serving:

Butter Brown sugar or maple syrup 3/4 cup toasted, chopped nuts (pecans or walnuts)

Secure the lid on the pressure cooker, making sure that the pressure release is set to its sealing position. Cancel the Sauté program, then select your pressure cooker’s Manual setting and set the cooking time for 12 minutes at high pressure. (The pot will take about 10 minutes to come up to pressure before the cooking program begins.) This recipe makes quite a bit and you may have leftovers. The easiest way to reheat an individual serving of oatmeal is in the microwave. Heat in a microwave-safe bowl for 2 to 3 minutes, until piping hot. The oatmeal will have thickened—stir in a splash of milk to thin it out again.