Oh my goodness, you have to try these cinnamon raisin baked oatmeal squares! They’ve become my absolute go-to breakfast solution for those chaotic weekday mornings when I’m running out the door with coffee in one hand and my keys in the other. The smell of cinnamon wafting through my kitchen reminds me of lazy Sunday mornings when my kids were little – they’d come padding downstairs in their pajamas, drawn by that warm, comforting aroma. What I love most is how these wholesome squares pack natural sweetness from plump raisins and just a kiss of maple syrup, no refined sugar needed. And the best part? They’re so easy to make ahead – I usually bake a batch on Sunday night, and boom! Breakfast is ready for the whole week.

Why You’ll Love These Cinnamon Raisin Baked Oatmeal Squares
Trust me, once you try these squares, you’ll wonder how you ever survived busy mornings without them! Here’s why they’ve become my kitchen MVP:
- So easy a sleepy person could make them – Just mix, pour, and bake. I’ve literally made them half-asleep while waiting for my coffee to brew.
- Packed with good-for-you stuff – The oats keep you full, the raisins give natural sweetness, and that cinnamon? It’s like a warm hug for your insides.
- Kid-approved (even picky eaters!) – My niece calls them « breakfast cookies » and has no idea she’s eating something wholesome.
- Meal prep magic – They stay perfect in the fridge all week. Just grab and go – no more sad, rushed breakfasts!
Ingredients for Cinnamon Raisin Baked Oatmeal Squares
Okay, let’s talk ingredients! I’ve made these cinnamon raisin baked oatmeal squares so many times I could probably do it in my sleep. Here’s what you’ll need – and don’t worry, I’ll share all my little swaps and secrets too. Everything gets divided into dry and wet ingredients because, trust me, it makes the mixing so much easier.
Dry Ingredients
- 2 cups rolled oats – Not quick oats! The old-fashioned kind give the best texture. Though if you’re in a pinch, quick oats will work (just don’t tell my grandma I said that).
- 1 tsp ground cinnamon – The star of the show! I sometimes sneak in an extra 1/2 tsp because I’m a cinnamon fiend.
- 1 tsp baking powder – This little magic powder makes the squares puff up just right.
- 1/2 tsp salt – Don’t skip this! It balances all the sweetness perfectly.
Wet Ingredients
- 1 cup milk – Any kind works great. I’ve used everything from whole milk to almond milk depending on what’s in my fridge.
- 1 egg – Room temperature is best, but I’ve used cold eggs straight from the fridge in emergencies.
- 1/4 cup maple syrup – The real stuff, please! But if you’re out, honey works too.
- 1 tsp vanilla extract – The good vanilla makes all the difference. I may or may not have been known to add an extra splash…
- 1/2 cup raisins – I like to plump mine in warm water for 10 minutes first – makes them extra juicy!
See? Nothing fancy, just simple, wholesome ingredients that come together to make something magical. And the best part is how flexible this recipe is – I’ll often toss in whatever nuts or seeds I have lying around too. Happy baking!
How to Make Cinnamon Raisin Baked Oatmeal Squares
Alright, let’s get baking! These cinnamon raisin baked oatmeal squares are so simple, but I’ve learned a few tricks over the years that make them come out perfect every single time. Just follow these steps, and you’ll be enjoying a hearty, wholesome breakfast in no time!
Step 1: Preheat and Prepare
First things first – preheat that oven to 350°F. While it’s heating up, grab your 8×8-inch baking dish (I like using glass, but metal works too) and give it a nice greasing. I use butter or cooking spray, making sure to get into all the corners – there’s nothing sadder than oatmeal squares that stick! This little prep step takes just a minute but makes cleanup so much easier later.
Step 2: Mix Dry and Wet Ingredients
Now for the fun part! In a big mixing bowl, toss together all those dry ingredients – oats, cinnamon (smell that amazing aroma already?), baking powder, and salt. Mix them until they’re all best friends. In another bowl, whisk together the wet ingredients – milk, egg, maple syrup, and that lovely vanilla extract. Here’s my secret: whisk until it’s totally smooth and slightly frothy, about 30 seconds. Then, pour the wet team into the dry team and gently stir until just combined. Fold in those plump raisins last – unless you forgot to soak them like I sometimes do, in which case just toss ’em in dry and pray!

Step 3: Bake and Cool
Pour your delicious mixture into the prepared pan and smooth the top with a spatula. Slide it into the oven and set your timer for 30 minutes, but here’s what to watch for: the edges should turn a beautiful golden brown, and the center should look set (no jiggling when you gently shake the pan). Now comes the hardest part – waiting! Let the pan cool on a rack for at least 10 minutes before cutting. I know it’s tempting, but slicing too early makes messy squares. Pro tip: use a plastic knife for cleaner cuts – it sounds weird, but it works like magic!
Tips for Perfect Cinnamon Raisin Baked Oatmeal Squares
After making these cinnamon raisin baked oatmeal squares about a hundred times (okay, maybe fifty), I’ve learned all the tricks to get them perfect every single time. Here are my hard-earned secrets:
- Don’t overmix the batter – Stir just until everything’s combined, then walk away! Overmixing makes tough squares. A few lumps are totally fine – they’ll disappear in the oven.
- Test doneness with a light touch – The top should spring back when gently pressed. If it leaves an indent, give it 2-3 more minutes. Watch for golden edges – that’s your visual cue!
- Sweetness is adjustable – My kids like these sweeter, so I’ll sometimes bump the maple syrup to 1/3 cup. For less sugar, try 2 tbsp and add extra cinnamon for flavor.
- Let them cool properly – I know it’s tempting to dig in, but waiting 10 minutes makes them hold together better. Warm is perfect, hot is messy!
There you go – all my best tricks in one spot. Now go make some magic!

Storage and Reheating Instructions
Okay, let me tell you how I keep these cinnamon raisin baked oatmeal squares tasting fresh all week – because let’s be real, we all need that grab-and-go breakfast magic! Once cooled completely (this is key!), I store them in an airtight container in the fridge. They’ll stay perfect for up to 5 days – though in my house, they never last that long! For longer storage, wrap individual squares tightly in plastic wrap and freeze for up to 3 months. When you’re ready to eat, just pop them in the microwave for 20-30 seconds until warm and cozy again. Sometimes I’ll reheat them in the toaster oven for extra crispiness – absolute perfection with my morning coffee!
Nutritional Information
Let’s be honest – we’re not eating these cinnamon raisin baked oatmeal squares just because they’re delicious (though that’s definitely a bonus). They’re packed with good stuff too! Each square comes in at about 120 calories, with 3 grams of protein to keep you full and 2 grams of fiber from those hearty oats. Now, here’s my nutritionist friend’s disclaimer: these values can vary based on your exact ingredients. Used almond milk instead of whole? Added extra raisins? Every little tweak changes the numbers slightly. But honestly? That’s the beauty of homemade – you know exactly what’s going into your food, and that’s what really matters!
Frequently Asked Questions
I get so many questions about these cinnamon raisin baked oatmeal squares – which makes sense because they’re basically the perfect breakfast! Here are the answers to the ones I hear most often from friends and family (and yes, I’ve tested all these variations myself!).
Can I use quick oats instead of rolled oats?
You totally can, but the texture will be a bit different. Quick oats make the squares softer and more cake-like, while rolled oats give that perfect chewy texture I love. If you’re using quick oats, try reducing the milk by 2 tablespoons – they absorb liquid faster. Honestly? I’ve made it both ways when desperate, and they’re still delicious!
How do I make these oatmeal squares vegan?
Easy peasy! Just swap the egg for a flax egg (1 tbsp ground flax + 3 tbsp water, let sit 5 minutes) and use your favorite plant-based milk. I’ve had great results with almond and oat milk. The maple syrup is already vegan – bonus! My vegan sister-in-law says these are her favorite breakfast treat.
Can I freeze these baked oatmeal squares?
Absolutely! That’s one of my favorite things about this recipe. Let them cool completely, then wrap individual squares tightly in plastic wrap and pop them in a freezer bag. They’ll keep for up to 3 months. To reheat, just microwave for 30-45 seconds straight from frozen – perfect for those « oh no I forgot breakfast » mornings!
What can I use instead of raisins?
Oh, the possibilities! Dried cranberries are fantastic (especially with orange zest added), chopped dates add caramel-like sweetness, or try diced apples for a different texture. My kids love when I use chocolate chips instead – not exactly health food, but hey, it gets them eating oats!
Why did my squares turn out dry?
Oh no! Usually this happens if they’re overbaked or the oven runs hot. Next time, check them at 25 minutes – they should be just set in the center. Also, make sure you’re measuring your oats correctly (lightly spooned into the cup, not packed). And don’t skip that resting time – it lets the squares absorb any extra moisture!


Cinnamon Raisin Baked Oatmeal Squares
Ingrédients
Equipment
Method
- Preheat the oven to 350°F (175°C). Grease an 8×8-inch baking dish.
- In a mixing bowl, combine the oats, cinnamon, baking powder, and salt.
- In another bowl, whisk together the milk, egg, maple syrup, and vanilla extract.
- Pour the wet ingredients into the dry ingredients and stir until combined. Fold in the raisins.
- Transfer the mixture to the prepared baking dish and spread evenly.
- Bake for 30 minutes, or until the edges are golden and the center is set.
- Let cool for 10 minutes before cutting into squares.