Slow Cooker Groatmeal (Oat Groats)

Once you taste this rustic, chewy, delicious slow cooker groatmeal (oat groats), you’ll never want plain oatmeal again!

slow cooker oat groats (groatmeal)

This recipe for slow cooker oat groats (groatmeal) has been a lifesaver for me. First, it has given us a yummy option for a power breakfast (loaded with healthy nutrients). Second, it is an easy make ahead breakfast that can be frozen and reheated as needed.

I found the groatmeal recipe here on The Yummy Life and immediately decided to try it. We love steel cut oatmeal and its chewy, rustic texture. Groatmeal is actually even more rustic, and this recipe is full of healthy ingredients~apples, chia seeds, and almond milk.

Steel cut oats and oat groats have a lower glycemic index (time it takes to cause a spike in blood sugar) than quick or old fashioned oats. See the differences below.

Old Fashioned Rolled oats: Oats are steamed, softened, pressed flat betweeen rollers and then dried. The flake texture makes them quickest cooking.

Steel cut oats: Whole oat groats are cut into small pieces with sharp blades, which makes them retain their nutty consistency.

Oat groats: The whole oat kernel with only the inedible hull removed. The least processed oats you can buy, they take the longest to cook. They have the highest protein of all oats.

Where to buy oat groats: I couldn’t find oat groats at any of my stores in Birmingham~Whole Foods, Sprouts, Fresh Market, or Publix, so I ordered them here on amazon. You get 4 bags of oat groats for a little over $4 per bag, which is a great price if you end up using all the groats.

I cook these oat groats in my casserole crock pot. Typically, food cooks a bit faster in a casserole crock due to its smaller size and casserole dish shallow depth. These were cooked on low for about 6 hours. For crispy edges (as seen in the Yummy Life blog), you can cook them longer.

Flavor: These oat groats have a faint apple, cinnamon & maple syrup flavor. We eat them exactly as they are~no additional sweetener needed.

Additions: Coconut flakes, blueberries, walnuts, and any milk (I prefer almond-coconut milk) can be added to the groatmeal for a real power breakfast.

Make ahead: I made the recipe below, cut the groatmeal into squares, and froze them in small freezer bags. When ready to cook, I put however many portions needed into a microwavable bowl. Two minutes on high is how long it takes to cook in my microwave.

Cooking groatmeal from frozen is super easy. Simply take the portion(s) you need from the freezer, place in a microwave safe bowl, and heat on high until groats are warm (adding milk if needed to desired consistency). See photos below.

We love this groatmeal and may never go back to regular oats again! If you try this recipe, I’d love to hear back from you. As always, thanks so much for stopping by. Be blessed, and stay savvy!

Slow Cooker Oat Groats (Groatmeal)
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  • 2 cups oat groats
  • 2 tablespoons chia seeds
  • 1 teaspoon cinnamon
  • 1/2 teaspoon salt
  • 2 apples, cored and pulsed in food processor or 1 cup applesauce)
  • 2 cups milk (I like vanilla almond milk)
  • 3 cups water
  • 1-2 TB maple syrup (optional)


  • Coat the inside of a casserole crock or slow cooker with cooking spray or oil. Add the groats, chia seeds, cinnamon, and salt; stir well.
  • Add the applesauce or apples, milk, water and maple syrup.
  • Stir to combine.
  • Cover and cook on low for approximately 6-7 hours.
  • Cut cooked groatmeal into individual portions.
  • Stir after spooning into serving bowls.
  • Add additional milk, sweetener, berries or nuts if desired.
  • TO FREEZE: Place cut portions into freezer safe bags or containers.
  • TO REHEAT: Place groat portions in individual bowls.
  • Heat on high in 1 minute intervals until hot.
  • Add milk if creamier consistency is desired.