Name: Homemade Oatmeal Bars
Prep time: 150 min
Cook time: 20 min
Total time: 20 min
Ingredients: 1 tbsp unsalted butter (softened or nonstick spray); 5 cups rolled oats; 1 1.2 cups toasted walnuts (chopped); 1 tbsp ground cinnamon; 2 tsp baking powder; 1 tsp kosher salt; 4 1/2 cups milk; ½ cup heavy cream; ½ cup pure maple syrup; 2 eggs (beaten lightly); 1 tbsp vanilla extract; Icing; ½ cup unsalted butter (softened); 4 oz cream cheese (room temperature); 1 cup powdered sugar; 2 tbsp heavy cream

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Whip up these yummy homemade oatmeal bars with oats, maple syrup, and walnuts — perfect for busy mornings, snack attacks, and hungry teens!

Make these deliciously wholesome copycat Quaker oatmeal bars — a perfect breakfast or snack. Packed with rolled oats and toasted walnuts, they’re a guilt-free treat!

I’m all for having quick and easy grab-and-go snacks in the house. These kinds of things are ideal for growing (and ravenous!) teenagers.

But have you read the ingredient list on a box of granola bars from the grocery store? There are so many additives in them. That’s why I love making my own versions of those kinds of snacks at home.

Too busy to make this right away? Pin it for later! Pin this post to your favorite board on Pinterest and it will be there when you’re ready!

Making my own homemade snacks means that I can control all of the ingredients, like with today’s recipe for oat bars.

These delicious bars are perfect for a quick snack or breakfast on the run. Be sure to check out these chocolate coconut date bars and this crunchy granola bar recipe too!

Except for the icing, there is no added sugar. The sweetness comes from real maple syrup instead.

Best of all, this recipe is easily adjusted to suit your family’s taste preferences. Sounds like a major win to me!

Prep Time: 2.5 hours

Cook Time: 20 minutes

Total Time: 1 hour, 15 minutes

Yield: 8-12 servings

Oatmeal Bars Recipe

Ingredients

For the Oatmeal Bars

Unsalted butter, softened, or nonstick spray – Keeps the bars from sticking to the pan and adds a light buttery flavor to the base.
Rolled oats – The hearty backbone of these bars, giving them that chewy, satisfying texture.
Toasted walnuts, chopped – Adds a delicious crunch and nutty richness (plus a little protein boost!).
Ground cinnamon – Brings warm, cozy flavor that makes your kitchen smell amazing.
Baking powder – Helps the bars rise slightly and stay soft instead of dense.
Kosher salt – Balances the sweetness and enhances all the other flavors.
Milk – Adds moisture and helps create a tender, almost custard-like texture.
Heavy cream – Makes the bars extra rich and creamy (because we’re not here for dry snacks).
Pure maple syrup – Naturally sweetens the bars with that classic, cozy flavor.
Eggs, beaten lightly – Binds everything together and gives structure to the bars.
Vanilla extract – Adds a subtle sweetness and depth of flavor.

For the Icing

Unsalted butter, softened – Creates a smooth, rich base for the frosting.
Cream cheese, room temperature – Adds a tangy, creamy element that balances the sweetness.
Powdered sugar – Sweetens and thickens the icing for that perfect drizzle.
Heavy cream – Helps achieve a silky, spreadable consistency.

Instructions

1. Preheat the oven to 375 F.

2. Butter or spray your pan.

3. In a large bowl, combine oats, walnuts (save 1/3 cup for top), cinnamon, baking powder, and salt.

4. In a separate bowl, mix together milk, heavy cream, vanilla, eggs, and maple syrup.

5. Pour the wet ingredients over the top of the oat mixture and stir to make sure everything is incorporated and there are no dry spots. Press the mixture into a 9×13″ baking dish.

6. Bake for 40-45 minutes, until golden brown and no liquid is left on the surface.

7. To make the frosting, start by mixing the cream cheese and butter until smooth.

8. Add in the powdered sugar and heavy cream or coffee creamer.

9. Let the oatmeal bars cool for at least 10-15 minutes before cutting into squares and drizzling the top of the bars with frosting.

10. Sprinkle on extra walnuts.

Variations

I prefer to use old-fashioned oats for this recipe, but you could try a combination of old-fashioned and quick oats if you wanted.
Make oatmeal chocolate chip bars by adding white, milk, or dark chocolate chips in with your dry ingredients. You could also use mini chocolate chips, peanut butter chips, or mini M&Ms.
Include chopped dried fruit, like raisins, cranberries, or apricots.
Try different nuts or add in some chia seeds.
If you don’t have maple syrup, you can substitute a 1/2 cup of honey instead.

Tips and Tricks

Save yourself the cleanup and line your baking dish with parchment paper. It will prevent any sticking and, if you leave some excess hanging over the edges, it makes lifting the bars out of the pan so easy.
Once you have cut the oat bars and they have cooled completely, wrap each one individually in plastic wrap before storing them. This makes it so easy to throw one into a lunch kit, backpack, or purse on the way out the door.
Store the bars at room temperature in an airtight container.

Frequently Asked Questions

Are oatmeal bars healthy?
Oatmeal bars can be a healthier option, especially when made at home with whole ingredients like oats, nuts, and natural sweeteners like maple syrup — way better than store-bought versions loaded with additives.

Can I make oatmeal bars ahead of time?
Absolutely! These bars are perfect for meal prep and can be stored at room temperature or in the fridge for several days — great for those grab-and-go mornings.

Can I freeze oatmeal bars?
Yes! Wrap them individually and freeze for up to 2–3 months. Just thaw overnight or pop one in the microwave for a quick snack.

What type of oats work best for oatmeal bars?
Old-fashioned rolled oats are ideal because they give the best texture, but you can mix in quick oats if that’s what you have on hand.

Why are my oatmeal bars too dry or crumbly?
This usually happens if there isn’t enough liquid or they’re overbaked — keep an eye on them and make sure the mixture is fully combined before baking.

I would love to hear about your favorite version of this delicious recipe for baked oatmeal bars!

If you love having plenty of healthy grab-and-go breakfast options on hand, give these high protein chocolate zucchini muffins, keto blueberry muffins, and apple cinnamon muffins a try.

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