Breakfast on the go is a snap with these healthy, delicious apple cinnamon baked oatmeal bars on hand! Made with real apples, cinnamon, and oatmeal, these oatmeal bars are just what you need when you’re in the mood for a filling homemade snack.

Apple cinnamon oatmeal with syrup being poured over it.

Is there anything better than warm apples baked with cinnamon and oatmeal? Apple cinnamon baked oatmeal bars are so easy to make and one pan provides you with breakfast and snacks all week. 

This baked oatmeal with apples is fragrant and comforting and every bit as healthy as you want it to be!

About this Apple Cinnamon Baked Oatmeal

Apple cinnamon baked oatmeal bars are a versatile option whether you need a snack for a group or breakfast for one. They travel well and can be stored in the fridge for up to a week, meaning you can make them on Sunday afternoon and be totally ahead of the game for your work week. Or save them for a special occasion and pair with an apple cider mimosa!

These oatmeal bars are also a great option for people with food allergies and dietary preferences. In addition to providing whole grains to keep you full, many oatmeal brands ensure that their oats remain gluten-free, and you can easily swap in non-dairy milk to accommodate vegan diets.

Easy, sweet, filling, and versatile – these bars have it all!

Blue platter full of baked oatmeal squares. Cinnamon sticks in image.

What you need

  • Oats: This recipe uses quick cooking oats which gives them a cake-like texture. If you prefer oatmeal with more bite or texture, try using old fashioned (rolled) oats. They may need to bake 5-10 minutes longer. Steel cut oats will not work in this recipe!
  • Apples: Apple flavor is added to these bars in two different ways, apple sauce and diced apples. That ensures there is apple in every single bite!
  • Pantry and Fridge Staples: You’ll need to grab milk, brown sugar, cinnamon, salt, and nutmeg.

How to make it

Preheat your oven to 350°F and prepare a 8×8-inch pan with parchment paper. A 9×9-inch pan will also work, but your baked oatmeal will be less thick.

Overhead view of ingredients needed for recipe in separate bowls.

In a big bowl, combine all ingredients and stir them together with a spoon or spatula.

Oatmeal ingredients before and after being mixed.

Spread the mixture evenly in your pan and bake for 50-55 minutes until cooked and golden brown. 

Oatmeal before and after being baked.

Let the bars cool down a bit, and then remove from the pan with the help of the parchment paper. Cut into bars.

Bar of baked oatmeal on a spatula.

FAQs

What is the difference between applesauce and apple butter?

Apple butter is cooked much longer than applesauce. It’s thicker, smoother, and has a more intense apple flavor. If you have apple butter on hand, try it in these apple butter pancakes.

What is the difference between quick oats and rolled oats?

Rolled oats, otherwise known as old-fashioned oats, are oat groats that have been steamed and rolled flat. Quick oats are rolled thinner and cut into smaller pieces, allowing them to cook more quickly.

How to make this apple baked oatmeal your own

  • You can use a plant-based milk to make these bars vegan.
  • You can swap the apples for other fruits like berries or bananas.
  • If you’re looking to make these into a treat, sprinkle in a handful of semi-sweet chocolate chips!
  • If cinnamon isn’t your thing, you can use vanilla instead.
  • If you warm these bars and serve them with a scoop of vanilla ice cream, homemade whipped cream, or cinnamon whipped cream, they taste an awful lot like apple pie! Even better, top them with fried apples or apple compote.

Storage Suggestions

Store these bars covered in your fridge for up to a week.

Reheating Tips

To enjoy them warm, you can reheat them in the microwave in 30-45 second intervals.

More recipes using oats

Stack of three squares of apple cinnamon oatmeal drizzled with syrup.

Get the Recipe: Apple Cinnamon Baked Oatmeal

Breakfast on the go is a snap with these healthy, delicious apple cinnamon baked oatmeal bars on hand! Made with real apples, cinnamon, and oatmeal, these oatmeal bars are just what you need when you’re in the mood for a filling homemade snack.
5 from 1 vote

Ingredients

  • 2 1/2 cups quick cooking oats (see note)
  • 1 cup whole milk
  • 1 cup apple sauce
  • 1/4 cup packed light brown sugar (see note)
  • 2 tablespoons ground cinnamon
  • 1/4 teaspoon salt
  • 1 pinch nutmeg
  • 1 large (or 2 small) apples, diced (around 1 1/2 cups diced)

Instructions

  • Preheat your oven to 350°F and line a 8×8-inch pan with parchment paper.
  • In a big bowl, combine all ingredients and stir them together with a spoon or spatula.
  • Spread the mixture evenly in your pan and bake for 50-55 minutes until cooked though and golden brown.
  • Let cool down a bit, remove from the pan with the help of the parchment paper and cut into bars.

Notes

  • Quick cooking oats make the texture more cake-like because they are thinner and cook faster. If you like more bite to your baked oatmeal, you can also use old fashioned/rolled oats. You might need to bake them 5-10 minutes longer.
  • Adjust brown sugar to your liking. The amount of sweetness needed depends greatly on what kind of applesauce you use. You can just try a bit of the mixture after having put everything together. 
  • If you don’t have an 8×8-inch pan, you can also use a 9×9 pan, just be aware that the oatmeal will be a bit thinner.
  • Variations: Use plant based milk to make this vegan. Instead of apples you can also add other fruits like berries or bananas.
  • Make ahead: These oatmeal bars taste also very good cold and make for a great healthy snack to take to work or school. Keep them covered in your fridge for up to a week.
Serving: 1square, Calories: 108kcal, Carbohydrates: 23g, Protein: 2g, Fat: 1g, Saturated Fat: 1g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 1g, Cholesterol: 2mg, Sodium: 47mg, Potassium: 102mg, Fiber: 2g, Sugar: 12g, Vitamin A: 38IU, Vitamin C: 1mg, Calcium: 39mg, Iron: 1mg