
These decadent Cinnamon Roll Blondies mix the chewy goodness of a butter-rich blondie with swirls just like your favorite morning pastry. When they're baking, your house will smell so good, everyone will wander into the kitchen wondering what's in the oven.
I whipped these up for my sister's surprise brunch party. As they baked, family members kept popping into the kitchen, sniffing the air and asking what smelled so amazing. Now they don't let me show up to gatherings without bringing a batch.
Ingredients
- Unsalted butter: Creates that melt-in-your-mouth base and helps you get the perfect chewy bite
- Brown sugar: Adds that wonderful caramel-like flavor that sets blondies apart from regular brownies
- Ground cinnamon: The key player here; try to find Ceylon cinnamon for better depth of flavor
- Vanilla extract: Brings out all the other tastes; don't go for the fake stuff if you can help it
- Powdered sugar: Makes that silky topping that reminds you of classic cinnamon rolls
How To Make These
- Get your pan ready:
- Put parchment in your 8×8 inch baking dish with extra hanging over the edges so you can lift them out easily later. Don't skip this or you'll regret it when serving.
- Mix the foundation:
- Stir melted butter with sugars until you get a shiny, thick mixture. This is what gives you that awesome chewy texture everyone loves. Make sure it looks glossy when you're done.
- Put in the wet stuff:
- Add eggs one by one, mixing after each. Pour in vanilla and keep stirring until everything looks lighter. This puts air in the batter for the right texture.
- Prepare dry ingredients:
- Mix flour, baking powder, cinnamon, and salt together really well. Getting all the lumps out now means no flour pockets in your finished treats.
- Combine everything:
- Add your dry mix to the wet stuff bit by bit, stirring gently just until you can't see flour anymore. Don't go crazy mixing or your blondies will turn out tough.
- Make those swirls:
- Spread half the batter in your pan, sprinkle cinnamon sugar on top, then add the rest of the batter and more cinnamon sugar. Grab a knife and swirl it through to make that pretty pattern.
- Bake them just right:
- Put your pan in the hot oven and cook until the sides look done but the middle still jiggles a bit. This is the secret to getting that awesome fudgy center.
- Add the topping:
- Mix powdered sugar with milk until smooth, then drizzle all over your slightly cooled blondies. The warmth will help the glaze settle perfectly.

The cinnamon really makes these stand out from other treats. I found that waiting about 15 minutes before pouring on the glaze works perfectly - it partly soaks in while still leaving that pretty white topping you expect on cinnamon rolls.
Keeping Them Fresh
You can keep these treats in a sealed container at room temp for about 3 days. They actually taste even better on day two when all the flavors have had time to mix together. If you need them to last longer, stick them in the fridge for up to a week, but always let them warm up before eating for the best taste.
Customization Ideas
The standard version tastes fantastic, but you can easily switch things up. Throw in some chopped pecans or walnuts if you want some crunch. White chocolate chips go really well with the cinnamon flavor. For something a bit different, try adding a touch of cardamom to the cinnamon sugar mix - it'll give them a chai-like taste that's really interesting.
Fixing Common Problems
Most people mess up by leaving these in the oven too long. They should look a little undercooked in the middle when you take them out since they'll finish cooking as they cool. If your glaze is coming out too thick, just add a few more drops of milk until it pours nicely. For really neat slices, run your knife under hot water and wipe it clean between cuts.

Frequently Asked Questions
- → What’s the best way to store these blondies?
Keep them in a sealed container at room temperature for around 3 days, or refrigerate them for up to a week to enjoy longer.
- → Can I swap out cinnamon?
Sure! Try nutmeg or a mix of spices like cardamom and allspice for something new.
- → What other glaze can I try?
Besides the classic powdered sugar glaze, cream cheese frosting or a maple syrup drizzle are delicious options.
- → Is there a gluten-free option?
Yes, use a 1:1 gluten-free flour mix. Make sure it includes xanthan gum so the bars hold their texture.
- → How can I intensify the cinnamon flavor?
Add a dash of cardamom or a little vanilla extract to the cinnamon mix for more depth.
- → What’s the best way to serve them?
Warm them up and serve with vanilla ice cream or whipped cream for an extra treat.