Steel Cut vs Rolled Oats β€” What is the Difference?

Steel cut oats are whole oat groats that have been chopped into pieces. They take longer to cook than rolled oats but have a nuttier flavour, chewier texture and lower glycaemic index β€” meaning they keep you full longer.

Method 1: Stovetop (20–25 minutes)

  1. 1

    Bring water to a boil

    Use a ratio of 3 cups of water (or milk for creamier oats) to 1 cup of oats. For 2 servings use 1.5 cups water and half a cup of oats. Bring to a rolling boil.

  2. 2

    Add oats and reduce heat

    Add the oats, stir once, then reduce heat to a low simmer.

  3. 3

    Simmer for 20–25 minutes

    Cook uncovered, stirring occasionally. They are done when they have absorbed most of the liquid and reached your preferred consistency β€” they continue to thicken as they cool.

  4. 4

    Season and serve

    A pinch of salt while cooking enhances the flavour enormously. Top with your choice of toppings.

Method 2: Overnight (2 minutes in the morning)

  1. 1

    Boil water and add oats

    Before bed, bring water to a full rolling boil, add oats, stir and cook for 1 minute.

  2. 2

    Cover and leave overnight

    Turn off the heat, put the lid on and leave on the stovetop overnight. The residual heat finishes the cooking. Do not refrigerate β€” leave at room temperature.

  3. 3

    Reheat in the morning

    In the morning, reheat over medium heat stirring constantly. Add a splash of water if they have become too thick. Ready in 2 minutes.

Topping ideasBanana + peanut butter + honey. Apple + cinnamon + brown sugar. Mixed berries + Greek yoghurt. Banana + cacao + almond butter. Dried fruit + nuts + maple syrup.

Frequently Asked Questions

Yes β€” they reheat very well. Make a large batch on Sunday, refrigerate in portions and reheat each morning with a splash of water or milk. Keeps for 5 days in the fridge.
Nutritionally very similar. Steel cut oats have a slightly lower glycaemic index due to less processing, meaning they cause a slower rise in blood sugar and keep you fuller for longer. The difference is modest for most people.
Yes but be careful β€” they expand significantly and will overflow a regular bowl. Use a very large container, cook on 50% power, and check and stir frequently. The stovetop or overnight method is much easier.