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Whole Oat Cooking Methods and Fancy Whole Oat Groatmeal

Whole Oat Cooking Methods and Fancy Whole Oat Groatmeal

By: Terra Brockman (Read Bio)

Whole Oat Cooking Methods and Fancy Whole Oat Groatmeal
Cooked whole oats aren’t just for breakfast! They are also excellent with savory ingredients in many risotto-style side and main dishes such as Savory Oat Groats with Kale and Parmesan. Because oat groats are a little more tender than wheat berries, they are also great in soups and stews (use instead of rice, barley, or pasta), or in grain salads. Use one of the methods below to cook up a big batch of oats, and then keep them in your refrigerator to use all week long — for breakfast, lunch, and/or dinner!  Scroll down for a Fancy Whole Oat Groatmeal recipe!


  • 1 cup Janie’s Mill Whole Oats (makes 3-4 cups cooked oats)
  • Water (amount depends on your method of cooking, see below)
  • 1 teaspoon salt, or to taste

A. Stovetop Method (Perfect for a lazy weekend morning.)

  • Put salt and 8 cups of water into a large, heavy-bottomed pan and bring to a boil.
  • Add oat groats, return to a boil, then reduce the heat and boil uncovered until soft, about 1 hour.
  • Taste-test starting at 45 minutes, and stop cooking whenever the kernels are tender yet toothy, similar to al-dente pasta.
  • Drain off excess cooking water, then serve.

B. Slow Cooker (Crock-pot) Method (Good for either 2-3 hour no-watch cooking, or overnight cooking (on low) so you can wake up to a hot breakfast!)

  • Place oat groats, 4 cups of water, and salt into your slow cooker or crock pot.
  • For quicker oats, cook on high for 2 hours, and then reduce to low and cook another hour. Drain excess water and serve.
  • For overnight oats, cook on low for 6-7 hours. Drain excess water and serve.

C. Multi-Cooker / Instant Pot / Pressure Cooker Method (For when you’re in a hurry . . . or any time!)

  • Put the oat groats, salt, and 3 cups of water into your multi-cooker.
  • Seal the pressure valve to keep the steam in the pot. Set timer for 15 minutes on manual setting and high pressure.
  • When timer sounds, you can let the pot slowly cool down and then release the steam, or carefully quick release the pressure.
  • Drain excess water and serve.

NOTE: Because various makes of crock-pots, instant-pots, and pressure cookers are different, cooking times may vary from those listed above. You may need to experiment with the time needed to get your whole oat groats cooked just the way you want.

Fancy Whole Groat Oatmeal (Crockpot Method)


  • 2 cups Janie’s Mill Whole Oats (makes 6-7 cups cooked oats — enough servings for multiple days, depending on how many folks you’re feeding and how much they love groatmeal!)
  • 2 teaspoon cinnamon, or a combination of cinnamon, nutmeg, and/or ginger (optional)
  • 2 teaspoons salt
  • 2 or more apples or pears, cored and cut into small pieces (or 1 cup applesauce)
  • 3 cups milk (feel free to substitute non-dairy “milks”)
  • 3 cups water
  • 1/4 cup maple syrup or honey (optional)


  1. Place the oat groats, spices, and salt in the crock pot. Stir to combine.
  2. Add the apple or pear chunks (or applesauce), plus the milk, water and maple syrup or honey. Stir to combine.
  3. Cover and cook on low for approximately 6-7 hours or overnight.
  4. Place individual portions into serving bowls. Top with butter, yogurt, milk, honey, fruit, or nuts if desired.

    • TO FREEZE: Place portions into yogurt containers or freezer bags.
    • TO REHEAT: Place portions in individual bowls and microwave. Add additional milk, water, and/or butter to get creamy consistency, if desired.


    Whole wheat kernels are called “wheat berries,” while hulled whole oat kernels are called “oat groats.” That's why we're calling a whole kernel breakfast cereal made from Janie's Mill whole oat groats GROATMEAL!

    Oat groats are the least processed and most nutritious form of oats. At Janie’s Farm, we plant a special variety of hull-less oats in the spring, let them come to maturity over the summer, and harvest them in the fall. Then we clean them, and bag them up — straight from our fields to your kitchen!

    While most folks have grown up eating some form of oatmeal, the whole grain version is a rare bird. This may be because whole oats take longer to cook than rolled, flaked, or steel-cut oats. But with slow cookers (crockpots), multi-cookers (Insta-pot, etc), and good old-fashioned pressure cookers, you can have your hearty, healthy, nutty-tasting whole grain breakfast cereal as quick and easy as pouring hot water over those instant oatmeal packets (that taste like sawdust!). And if you cook up a big batch of Whole Oat Groatmeal over the weekend, you’ll have “instant” breakfasts all week long.

    Posted on July 02 2020