You know that feeling when you wake up craving cinnamon rolls but need something actually filling for breakfast? That’s exactly how I stumbled upon these Cinnamon Roll Baked Oatmeal Squares. One sleepy Sunday morning, staring at my last cinnamon roll and a nearly empty oatmeal container, I had a “why not both?” moment. The result? Pure magic.

Table of Contents
Table of Contents
Why You’ll Love Cinnamon Roll Baked Oatmeal Squares
These squares give you all that swirl-y cinnamon goodness you love, but with the hearty satisfaction of oatmeal that’ll actually keep you full till lunch. Imagine your favorite cinnamon roll met a bowl of oatmeal and decided to get married – that’s what we’ve got here. Perfect for rushed weekday mornings or lazy weekend brunches when you want something special without the fuss of rolling dough.
Okay, let me count the ways you’re going to adore these squares:
- Breakfast dreams come true – All the cozy cinnamon roll flavors without waiting for focused success!
- Meal prep magic – Bake a batch Sunday night and you’ve got breakfast handled all week (just try not to eat them all by Tuesday).
- Kid-approved – My picky eater actually asks for seconds – and that’s saying something!
- Simple ingredients – Probably everything you’ve got in your pantry right now.
Seriously, these squares check all the boxes – comforting, convenient, and crazy delicious. The first time I made them, my husband ate three before I could even grab my coffee!
Ingredients for Cinnamon Roll Baked Oatmeal Squares
Okay, let me tell you exactly what you’ll need to make these dreamy squares happen. I’ve learned the hard way that ingredient quality matters here – trust me, fresh cinnamon makes all the difference! Here’s your shopping list:
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- 2 cups old-fashioned oats (not quick oats – they’ll turn to mush!)
- 1/4 cup packed brown sugar – pack it good, we want that caramel sweetness
- 1 teaspoon baking powder – our little lift agent
For the spice blend:
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- 2 teaspoons ground cinnamon – the real star of the show
- 1/2 teaspoon salt – balances all that sweetness
The wet team:
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- 2 cups milk (any kind works – I’ve used everything from whole milk to almond)
- 1 large egg, beaten – room temp blends better
- 3 tablespoons unsalted butter, melted – plus another 5 tbsp for topping
- 1 teaspoon vanilla extract – the good stuff if you’ve got it
For that signature swirl:
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- 1/2 cup brown sugar – yes, more sugar – it’s a cinnamon roll after all!
- 1/2 tablespoon cinnamon – can’t have too much cinnamon in my book
Glaze magic:
- 1/2 cup powdered sugar
- 2 tablespoons cream or milk – dairy or plant-based both work
- 1/2 teaspoon vanilla – round out those flavors
Pro tip: If you’re going vegan, swap the milk for almond milk and the egg for a flax egg (1 tbsp ground flax + 3 tbsp water). Works like a charm! Now let’s get mixing…

Equipment You’ll Need
Grab these kitchen basics – they’re probably already in your drawers! You’ll need:
- An 8″ or 9″ baking dish (I use my trusty pie plate – works perfectly)
- Two mixing bowls (one for dry, one for wet ingredients)
- A good whisk (or fork in a pinch)
- Measuring cups and spoons
That’s it! No fancy gadgets required – just simple tools for simple deliciousness.
How to Make Cinnamon Roll Baked Oatmeal Squares
Okay, let me walk you through my foolproof method – I’ve made these so many times I could do it in my sleep! The key is taking it step by step for that perfect cinnamon roll magic in oatmeal form.
Preparing the Oatmeal Base
First things first – preheat that oven to 350°F and grease your baking dish. I use butter for that extra flavor, but cooking spray works too. Now grab two bowls – one for dry ingredients, one for wet.
In your big mixing bowl, whisk together the oats, brown sugar, baking powder, cinnamon, and salt. In the other bowl, whisk the milk, egg, melted butter, and vanilla until smooth. Pour the wet into the dry and stir until everything’s happily combined.
Here’s my secret trick: Let the mixture sit for 5-10 minutes. This lets the oats absorb some liquid so you get perfect texture – not too mushy, not too dry. You’ll see it thicken up slightly while you wait.
Baking and Adding the Toppings
Pour your rested oatmeal mixture into the prepared dish and pop it in the oven for 25兩個人-35 minutes. You’ll know it’s done when the edges are golden and the center springs back lightly when touched.
While that’s baking, make your cinnamon swirl magic! Mix the extra melted butter, brown sugar, and cinnamon together until you’ve got a thick, glossy paste. When the oatmeal comes out of the oven, drizzle this all over the top and use a knife to gently swirl it in – just like a cinnamon roll!
Let it cool for about 5-10 minutes (I know, torture!) before adding the glaze. Whisk together the powdered sugar, cream/milk, and vanilla until smooth, then drizzle artfully over your masterpiece. Now try to resist eating the whole pan!
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Irresistible Cinnamon Roll Baked Oatmeal Squares Recipe
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Total Time: 40 minutes
- Yield: 8 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
Cinnamon Roll Baked Oatmeal Squares combine the flavors of cinnamon rolls with the heartiness of oatmeal for a delicious breakfast or snack.
Ingredients
- 2 cups old fashioned oats
- 1/4 cup brown sugar
- 1 teaspoon baking powder
- 2 teaspoons ground cinnamon
- 1/2 teaspoon salt
- 2 cups milk
- 1 large egg
- 3 tablespoons unsalted butter, melted
- 1 teaspoon vanilla extract
- 5 tablespoons unsalted butter, melted
- 1/2 cup brown sugar
- 1/2 tablespoon ground cinnamon
- 1/2 cup powdered sugar
- 2 tablespoons cream or milk
- 1/2 teaspoon vanilla
Instructions
- Preheat oven to 350° F and grease 8″ or 9″ baking dish or pie plate.
- Using a large bowl, mix all of the oatmeal ingredients until well combined. Set aside for 5-10 minutes to allow the mixture to thicken slightly.
- Transfer oatmeal to the prepared baking dish and bake in preheated oven for 25-35 minutes or until slightly brown on top.
- While the oatmeal bakes, prepare the cinnamon topping by mixing the butter, brown sugar and cinnamon in a small bowl until well combined. In another small bowl mix the powdered sugar, cream and vanilla for the glaze.
- Allow baked oatmeal to cool for about 5-10 minutes before adding cinnamon drizzle and vanilla glaze to the top.
- Enjoy warm, with or without a little milk.
Notes
- Use old fashioned oats for best texture.
- For a vegan version, substitute milk with almond milk and egg with flaxseed meal.
- Store leftovers in an airtight container in the fridge for up to 3 days.
- Reheat in the microwave for 30-60 seconds before serving.
Nutrition
- Serving Size: 1 square
- Calories: 250
- Sugar: 20g
- Sodium: 200mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 3g
- Protein: 5g
- Cholesterol: 45mg
Tips for Perfect Cinnamon Roll Baked Oatmeal Squares
After burning more batches than I’d like to admit (oops!), here are my hard-won secrets for flawless squares every time:
- Egg temp matters! That egg mixes way better at room temperature – just leave it out while you gather other ingredients.
- Sweetness check – Taste your batter before baking and adjust sugar if needed. Some like it sweeter than others!
- Toothpick test – Insert it near the center. You want moist crumbs, not wet batter.
- Watch the clock – Overbaking makes them dry. Pull them when golden, not dark brown.
Trust me, these little tricks make all the difference between good squares and “oh my goodness” squares!

Variations and Substitutions
One of the best things about this recipe is how adaptable it is! Here are my favorite tweaks:
- Vegan version: Swap the egg for a flax egg (1 tbsp ground flax + 3 tbsp water) and use almond milk. Works beautifully!
- Lower sugar: Coconut sugar instead of brown sugar gives a lovely caramel note with less glycemic impact.
- Crunch lovers: Stir in 1/2 cup chopped pecans or walnuts – that extra texture is heavenly.
Fair warning though – using quick oats instead of old-fashioned makes the texture too mushy. Some swaps just aren’t worth it!
Storing and Reheating
These squares keep beautifully in the fridge for up to 3 days – just pop them in an airtight container. When that cinnamon craving hits, microwave a square for 30-60 seconds until warm and gooey again. The glaze might look a little dull after storage, but a quick drizzle of fresh vanilla glaze brings it right back to life!
Nutrition Information
Now, I’m no nutritionist (just a passionate oatmeal enthusiast!), but here’s the estimated breakdown per square: about 250 calories, 35g carbs, and 5g protein. Remember – these numbers can change depending on your exact ingredients. My advice? Enjoy every delicious bite and don’t stress the details!
Frequently Asked Questions
I’ve gotten so many questions about these squares over the years – here are the ones that come up most often:
Can I use quick oats instead?
Oh honey, I tried that once – total mush fest! Old-fashioned oats hold their shape beautifully and give that perfect chewy texture we love. Quick oats absorb too much liquid and turn into oatmeal paste (not the dream!).
How do I make this vegan?
Easy peasy! Swap the milk for almond or oat milk, use a flax egg (1 tbsp ground flax + 3 tbsp water), and vegan butter. The texture comes out nearly identical – my vegan sister-in-law gobbles these up!
What’s the best way to reheat leftovers?
Microwave for 30-60 seconds with a tiny splash of milk to keep them moist. Though let’s be real – in our house, leftovers rarely make it to day two!
Can I freeze these?
Absolutely! Wrap individual squares tightly and freeze up to 3 months. Thaw overnight in the fridge or microwave straight from frozen (add 30 extra seconds). Perfect for busy school mornings!

Final Thoughts
These cinnamon roll baked oatmeal squares have become my happy place – that perfect combination of comforting and convenient. Once you try them, you’ll understand why my family begs me to make double batches! Give them a whirl this weekend and let me know how yours turn out. Pro tip: Keep napkins handy – that cinnamon glaze tends to disappear faster than the squares themselves!
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