Baked Steel Cut Oatmeal with Plums

Baked Steel Cut Oatmeal with Plums is a hearty and filling baked breakfast dish that the whole family will love and is perfect to make ahead for meal prep. Jump to Recipe


In my opinion, baked steel cut oats are one of the best ways to eat oatmeal. It comes out with a deliciously chewy texture, tons of flavor, and an almost bar-like consistency. It's a nice alternative to Stove Top Steel Cut Oats or Slow Cooker Steel Cut Oats.

This time of year, I really start to crave heartier breakfasts that warm me up inside and out and keep me fueled all morning. And oatmeal is a clear choice when it comes to breakfasts like these. However, since steel cut oats take much longer to cook, I like to bake up a big batch that I can eat all week.

Since I had some beautiful ripe plums from the farmer’s market, I decided to use those in my baked steel cut oatmeal, but you could use any fresh fruit. Berries, bananas, apples, pears, and even fresh pumpkin are all delicious. From there I like to add a bit of flaxseed meal, maple syrup for sweetness, cinnamon, and almond or regular milk. If you have leftovers, keep them refrigerated and then warm up before eating with a touch of extra milk if needed.

Recipe Ideas for Baked Steel Cut Oatmeal

There are tons of ways to customize this recipe based on what you like to eat and what you have in the house. I constantly change out the fruit, sweetener, and add in all kinds of toppings to mix things up.

  • Fruit: Although I used plums in this recipe, you can use any type of fruit when making baked oats. Some of my favorites include apples, blueberries, pears, bananas, strawberries, raspberries, and peaches. All together you will want around 2 cups of chopped fruit.
  • Milk: Depending on your preferences you can use nut milk, dairy milk, oat milk, coconut milk (not canned), or soy milk. You can also use flavored milk that has vanilla, cinnamon, or other flavors.
  • Nuts and seeds: Many times I like to incorporate some chopped nuts or seeds into the recipe for some added protein, nutrition, and healthy fats. Some favorites include almonds, walnuts, chia seeds, flax seeds, pecans, and pumpkin seeds.
  • Sweetener: There are tons of options when it comes to sweeteners in your baked oats. Normally I use maple syrup or honey. You can also use brown sugar, coconut sugar, or date sugar. And for a version without any refined sugars, you can use mashed bananas. For this recipe, you would want about 1 cup of mashed bananas to get a good level of sweetness. Note when you use mashed bananas, it will be moister.
  • Spices: Spices are another way to kick up the flavor of baked steel cut oats. Try adding cinnamon, nutmeg, pumpkin pie spice, turmeric, cardamom, ginger, or cloves.

What's the difference between old-fashioned oats and steel cut oats?

Both steel cut oats and old-fashioned or rolled oats come from the same plant and the main differences come from how that plant, the oat grain.  Steel cut oats are less processed than rolled oats and therefore have a firmer, chewier texture. Nutritionally speaking, both types of oats are healthy and good for you. They contain very similar amounts of carbohydrates, protein, and fat, although steel cut oats have slightly fewer calories and more fiber per serving.  Steel cut oatmeal also has a lower glycemic index.

In terms of cooking and eating these oats, there are a few key differences. First of all, steel cut oats will have a much heartier, chewy texture versus old fashioned oats which are creamier and softer. Steel cut oatmeal also tends to have a nuttier texture. Since they are less processed, steel cut oats also take much longer to cook, usually taking around 30 minutes on the stovetop instead of just five minutes for rolled oats.

How long do you need to bake steel cut oatmeal?

Since steel cut oats are less processed than rolled oats, they will take longer to bake in the oven. Generally, steel cut oats will take about 50 minutes to cook at around 375 degrees. Smaller portions may cook slightly quickly. Similarly, if you soak the oats overnight in the liquid, they sometimes cook more quickly.

Can I make this recipe with old fashioned oats?

Absolutely! If you make this with rolled oats you will just have to make a few adjustments to the amount of liquid and cooking time. Old fashioned oats don't expand as much as steel cut oats and need less liquid. I would recommend using 2 cups of oats and 2 cups of milk. For baking time, it will probably take between 30-35 minute for the oatmeal to cool completely.

Can baked steel cut oatmeal be frozen?

This baked oatmeal freezes surprisingly well. For the best results, start by letting the oatmeal come down to room temperature. Then cut it into individual servings and place them on a baking sheet or plate in the freezer for about 4 hours. Once the outside freezers, you can place them in a freezer safe bag or container and not worry about them sticking together. To reheat, wrap in a moist paper towel and heat for 1.5-2 minutes until heated through. You can also reheat it in a bowl with some additional milk for a more traditional oatmeal like consistency.

The Recipe
Baked Steel Cut Oatmeal with Plums

Baked Steel Cut Oatmeal with Plums

TOTAL TIME: 1 Hours, 5 Min
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  • 4 U medium plums, cored and chopped (6 small)
  • 3 cups unsweetened almond milk
  • 2 tbsp. pure maple syrup (more if you like your oats sweet)
  • 2 tsp. vanilla extract
  • 1 tsp. cinnamon
  • 1/4 tsp. of salt
  • 1.5 cups steel cut oats

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Preheat the oven to 375 degrees. Spray an a baking dish with cooking spray.


Spread the plums on the bottom of the baking dish.


Mix together the almond milk, flaxseed, maple syrup, vanilla extract, cinnamon, and salt. Then stir in the oats.


Pour the oats over the plums. Stir to combine.


Bake for 50-55 minutes until cooked through.

Nutritional Facts
Serving Size: About 1 cup
Amount Per Serving
Calories 264
Calories from Fat 39
% Daily Value *
Total Fat 6g
Saturated Fat 1g
Monounsaturated Fat 0g
Polyunsaturated Fat 0g
Cholesterol 0mg
Sodium 176mg
Total Carbohydrate 45g
Dietary Fiber 8g
Sugars 12g
Protein 9g

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Nutritional Values provided are estimates only and may vary based on the preparation method.

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About the author Meet Kristen McCaffrey
Hi, I’m the cookbook author, recipe developer, and food enthusiast behind Slender Kitchen. I am obsessed with making healthy food that is easy to prepare and absolutely delicious. Meal planning is my secret weapon and I hope I can make meal time easier for you with our tried and tested recipes and foolproof meal plans. Learn More
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1 Comment
On Baked Steel Cut Oatmeal with Plums
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Deanna Fitzpatrick
September 12, 2020 - 07:50
Add a Rating:
This is very good. I’m pretty sure there is a mistake in the recipe; it should be 1 teaspoon of cinnamon, not tablespoon. My plums were quite small so I used 7, but I think it would have been better with a few more.
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