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Overnight Steel Cut Oatmeal

A mixture of steel cut oatmeal and quinoa that can be cooked overnight in your slow cooker. This overnight steel cut oatmeal can be topped with fresh berries and a splash of milk for a delicious and healthy breakfast the whole family will love.
Course Breakfast
Cuisine American
Keyword Overnight oats and quinoa
Prep Time 15 minutes
Cook Time 8 hours
Total Time 8 hours 15 minutes
Servings 6
Calories 131kcal
Cost $3.23


  • 1 and 1/2 cups (215g) steel cut oatmeal (See Note 1)
  • 1/2 cup (90g) white quinoa
  • 5 cups (1265) unsweetened vanilla almond milk (or water; we prefer almond milk!)
  • 4 tablespoons (50g) brown sugar
  • 2 tablespoons real maple syrup
  • 1/4 teaspoon salt
  • 1 and 1/2 teaspoons vanilla extract
  • Optional: 1/4 teaspoon ground cinnamon, fresh berries, splash of milk, additional sugar for topping


  • PREP: Spray your slow cooker generously with non-stick spray or line with a slow cooker liner. In a mesh strainer, rinse out the quinoa really well under cold water for about 30 seconds to 1 minute. Let dry.
  • FILL UP SLOW COOKER: Combine the steel cut outs, rinsed quinoa, almond milk, brown sugar, maple syrup, salt, vanilla extract, and cinnamon (if desired) into the slow cooker.
  • COOK OVERNIGHT: Stir everything together really well, place the lid on the slow cooker, and then set your slow cooker to low for 1 hour. Then, without opening the slow cooker or disturbing it (otherwise the heat escapes!), switch the dial to "warm" setting. Allow to "cook" overnight for 8-9 hours (longer than that and it becomes mushy). See Note 2
  • IN THE MORNING: Once you wake up, immediately turn it off the heat and stir the oats. They may still have some liquid, but it continues to soak in as they are served (we like them better with extra liquid rather than dry and mushy/gummy!) These oats are intended to be fairly creamy.
  • SERVE: We have plenty of serving suggestions in the post, but add your favorite toppings such as fresh fruit, an extra splash of milk, any additional brown sugar, honey, or maple syrup, and a big scoop of nut butter (peanut butter, almond butter, etc.).


Note 1: do not use regular old fashioned or rolled oats or quick oats -- they won't work. IF you use instant or quick cooking steel cut oats (be sure to check the package, sometimes it's hard to tell if they are instant steel cut oats at first glance), it will be done in about 6-8 hours. For best results, I highly recommend regular steel cut oatmeal.
Note 2: Different cooking options:
  • For morning brunch: cook on low for 2-1/2 to 4 hours. (I don't recommend cooking these overnight steel cut oats on high temperature.)
  • Overnight - with quick cooking steel cut oats: cook on low for 30 minutes and then turn to warm for 6-7 hours
  • Overnight - with regular steel cut oats: cook on low for 1 hour and then turn to warm for 8-9 hours
  • Note that not all slow cookers are the same, some cook at a higher temperature than others. If your slow cooker has a tendency to cook quicker, it may be done even sooner than the times indicated. If it is left in the slow cooker too long it will likely become mushy and gummy. If your slow cooker has a tendency to cook slower and oats/quinoa isn't tender, turn the slow cooker back on to low for 30 or so minutes in the morning.


Serving: 1serving | Calories: 131kcal | Carbohydrates: 17g | Protein: 9g | Fat: 18.7g | Cholesterol: 1.8mg | Sodium: 93mg | Fiber: 3.3g | Sugar: 5g