Mason Jar Steel Cut Oats in the Pressure Cooker

Mason Jar Steel Cut Oats - cooked right in the jar inside a pressure cooker. Prepare the night before and easily cook in the morning to enjoy chewy, delicious steel cut oats of all varieties for breakfast.

4.5 from 15 reviews

Oats can be prepared first thing in the morning or to make breakfast completely stress free, prepare them the night before! Just fill jar with oats, sweetener, chia seeds, salt and water, place inside prepared pot and set timer to start cooking oats an hour before you plan on eating them. Add toppings and just like that, a true breakfast of champions!


  • 1/4 cup steel cut oats
  • 2 Tablespoons pure maple syrup
  • 12 Teaspoons chia seeds
  • Pinch of salt
  • ½ cup of the extras (fresh or dried fruit, nuts, coconut, spices, etc)
  • About 1 cup hot or room temperature tap water


  1. Add oats, syrup, chia seeds, salt and the extras into a pint size mason jar. Add water, leaving 1 1/2 inches of headspace.
  2. Shake until everything is well distributed and the chia seeds aren’t clumping together.
  3. Unscrew the lid and again tighten just until the lid meets resistance.
  4. Place a short rack in the bottom of the pot.
  5. Pour 1 cup of water into the pressure cooking pot.
  6. Select high pressure and set the timer for 20 minutes.
  7. When the beep sounds, turn off the pressure cooker. Use a natural release for 10 minutes and then release any remaining pressure (can also allow a full natural release).
  8. When the valve drops, remove the lid.
  9. Remove the jars from the pot and place on a cooling rack or hot pad. Warning: Do not open the jars until contents have settled (no longer boiling)
  10. Carefully remove the lid (it may still be hot to the touch)
  11. Give the oats a good stir and top with a dollop of frozen whipped cream and garnish.


Mason jars can develop weak points over repeated use in both pressure cooking and canning. I suggest rotating jars often to decrease the rare chance of a jar breaking while cooking.