I make these cinnamon sugar blondies whenever I want a fast, cozy dessert that tastes like a snickerdoodle in square form. They’re rich from melted butter and brown sugar, spiced with cinnamon, and finished with a crunchy cinnamon-sugar top that kids and guests always ask about. If you love the warmth of cinnamon but want something quicker than layered cakes or rolls, these blondies are exactly that—simple batter, one pan, and 30 minutes to bliss. If you like cinnamon-forward treats, you might also enjoy the Irresistible Cinnamon Roll Cookies for a different cinnamon-sugar experience.
Why you’ll love this dish
These blondies are comfort food at its most accessible: pantry-friendly ingredients, no mixer required, and a chewy, buttery crumb with a crackly cinnamon-sugar top. They’re perfect for school lunches, bake sales, a last-minute dessert for friends, or a weekend coffee treat.
"Soft in the middle, crisp on top — every bite tastes like cinnamon toast turned into a square."
They work well for busy bakers because the melted-butter method cuts down on preparation time and gives a fudgier interior than creamed-butter bars. They’re also budget-friendly: basic staples transform into something that tastes intentional and special.
Step-by-step overview
This recipe is straightforward. First, melt the butter and mix it with brown sugar. Add eggs and vanilla, then fold in a dry mix of flour, baking powder, salt, and cinnamon. Spread the batter in a greased 9×13 pan, sprinkle with a cinnamon-sugar topping, and bake 25–30 minutes until the center is set but still tender. Cool completely, then slice into squares.
Expect active prep of about 10 minutes and baking time around 25–30 minutes. The cooling step is essential—cutting while hot yields ragged pieces.
What you’ll need
- 1 cup unsalted butter, melted (you can use salted—reduce added salt to 1/2 tsp)
- 2 cups brown sugar (light or dark both work; dark gives deeper molasses notes)
- 2 large eggs
- 2 teaspoons vanilla extract
- 2 cups all-purpose flour (for gluten-free, substitute a 1:1 GF baking blend)
- 1 teaspoon baking powder
- 1 teaspoon salt
- 1 tablespoon ground cinnamon
- 1/4 cup granulated sugar for topping (mix with a pinch of cinnamon)
Notes: If you prefer a less sweet top, use 2 tablespoons granulated sugar. For a nuttier flavor, fold in 1 cup chopped pecans or walnuts at the end.
How to prepare it
- Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan or line it with parchment so you can lift the slab out for easy slicing.
- Stir the melted butter and brown sugar together in a large bowl until smooth and glossy.
- Add the eggs one at a time, beating briefly after each so they’re fully incorporated. Stir in the vanilla.
- In a separate bowl, whisk the flour, baking powder, salt, and cinnamon so the leavening and spice are evenly distributed.
- Fold the dry ingredients into the wet mixture just until combined. Don’t overmix—the batter should be thick and slightly glossy.
- Spread the batter evenly in the prepared pan using a spatula. Tap the pan once on the counter to level.
- Sprinkle the granulated sugar and pinch of cinnamon evenly over the top for that crackly, sweet finish.
- Bake 25–30 minutes, rotating the pan halfway through if your oven has hot spots. A toothpick inserted in the center should come out mostly clean with a few moist crumbs.
- Cool completely in the pan on a wire rack before slicing into squares. For cleaner cuts, chill for 30 minutes and use a sharp knife wiped between cuts.
Best ways to enjoy it
Serve these blondies warm with a scoop of vanilla ice cream for a classic pairing. They’re also lovely with a drizzle of salted caramel or paired with a strong coffee or chai latte to complement the cinnamon. For a brunch spread, cut smaller squares and arrange with fruit and yogurt—these blondies make a sweet contrast to tangy flavors.
If you want to present them like a bakery treat, lift the cooled slab from the pan with parchment and dust the top lightly with powdered sugar. For a handheld dessert option, cut into rectangles and sandwich a thin layer of cream cheese frosting between two pieces.
Storage and reheating tips
Store cooled blondies tightly covered at room temperature for up to 3 days. For longer storage, refrigerate in an airtight container for up to 7 days. To freeze, wrap individual squares or the whole slab (well wrapped) and place in a freezer bag for up to 3 months.
Reheat gently: microwave a single square 10–15 seconds to revive softness, or warm slices in a 325°F oven for 8–10 minutes. If frozen, thaw overnight in the refrigerator before reheating. As with any baked goods containing eggs and butter, keep them refrigerated if you won’t eat them within a few days to reduce spoilage risk.
Helpful cooking tips
- Use melted butter at room temperature—not hot—so you don’t start cooking the eggs when you add them.
- Measure flour by spooning it into the cup and leveling with a knife to avoid dense blondies.
- Don’t overbake. The blondies will set as they cool; aim for a toothpick with a few moist crumbs rather than bone-dry.
- For even thickness, spread batter with an offset spatula and give the pan a gentle shake to release air bubbles.
- To check doneness without a toothpick, gently press the center: it should spring back slightly but still feel a touch soft.
Creative twists
- Add-ins: Fold in 1 cup chocolate chips, toffee bits, or chopped pecans for texture.
- Brown-butter version: Brown the butter for a nutty depth before cooling slightly and using in the recipe.
- Swirls: Drop dollops of cream cheese sweetened with 2 tbsp sugar and swirl lightly before baking.
- Seasonal spin: Stir in 1/2 cup canned pumpkin plus 1/2 tsp pumpkin pie spice for fall notes.
- Dietary swaps: Use coconut oil instead of butter for a dairy-free twist (results differ) and a 1:1 gluten-free flour blend for celiac-safe blondies.
Looking for something related with a cinnamon lift and a different format? Try the red velvet twist found in Delicious Red Velvet Cinnamon Rolls for a sweet, colorful alternative.
Your questions answered
How long does prep and baking take?
Active prep is about 10 minutes. Bake 25–30 minutes, plus at least 30 minutes to cool if you want clean slices. Overall plan for about an hour from start to finish, mostly hands-off while baking and cooling.
Can I use white sugar instead of brown sugar?
Brown sugar gives moisture and that caramel-like flavor thanks to molasses. Using white sugar will produce a bit drier, less flavorful blondie. If you must, add 1–2 tablespoons of molasses or use half white and half brown sugar.
How do I know when they’re done?
Insert a toothpick into the center: it should come out with moist crumbs, not raw batter. The edges will be golden and slightly pulled away from the pan. Remember they continue to set as they cool.
Can I add mix-ins like nuts or chocolate chips?
Yes. Fold in up to 1 cup of add-ins at the end of mixing. Bigger mix-ins (nuts, chunks) give a more textured bite; chips sink slightly but give gooey pockets when warm.
Cinnamon Sugar Blondies
Ingredients
Method
- Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan or line it with parchment.
- In a large bowl, stir the melted butter and brown sugar together until smooth and glossy.
- Add the eggs one at a time, beating briefly after each addition. Stir in the vanilla.
- In a separate bowl, whisk together the flour, baking powder, salt, and cinnamon.
- Fold the dry mixture into the wet ingredients until just combined. The batter should be thick and slightly glossy.
- Spread the batter evenly in the prepared pan and tap the pan on the counter to level it.
- Sprinkle the granulated sugar mixed with a pinch of cinnamon over the top.
- Bake for 25–30 minutes or until a toothpick inserted in the center comes out mostly clean with a few moist crumbs.
- Cool completely in the pan on a wire rack before slicing into squares.
- For cleaner cuts, chill for 30 minutes before slicing.
