oatmeal in a jar with sliced bananas and blueberries

How to Make Oatmeal in a Jar

This recipe for oatmeal in a jar is more of a method than a recipe, and you (honestly) don't need to use a measuring cup.

Course Breakfast
Cuisine American
Keyword easy breakfast recipes, homemade oatmeal, oatmeal in a jar
Prep Time 7 minutes
Total Time 7 minutes
Servings 2
Calories 282 kcal
Author Kris Bordessa


  • 1 cup old-fashioned rolled oats (for a pint-sized jar)
  • 2 cups boiling water (more or less)
  • 1/3 cup walnuts (or other toppings)
  • 1 T. honey


  1. NOTE: The ingredient list above is for a PINT-SIZED jar. Please see the general instructions that follow for doing this without measuring.

  2. Pour dry rolled oats (not instant) into a canning jar to the halfway point. I don't care what size canning jar you use. A half-pint jar will make one serving; a pint jar will make two servings; and a quart will make four servings. You choose what will work best for your situation.
  3. Add a handful of extras if you'd like: chopped nuts, flax seeds, dried fruit...whatever suits your fancy. 

  4. Add a bit of honey or maple syrup or brown sugar. Top it off with a sprinkle of cinnamon.
  5. Pour boiling water into the jar to the bottom of the threads. Screw on lid and invert the jar a couple of times to mix the water with the dry ingredients. 

  6. Let the jar sit on your counter while you finish getting ready for work or school. Or tuck it into your bag and take it with you for breakfast at your desk. Wherever you let it rest, in 15 minutes it will be ready to eat. Add a little butter or milk and top it with fresh fruit if you like.

  7. Take the jar with you for breakfast on the go or eat it at home.