Save to Pinterest Chewy, golden blondies infused with a warming cinnamon swirl and wholesome oats—a comforting treat perfect for any occasion.
The first time I made these blondies, my kitchen filled with the comforting aroma of cinnamon and butter. Sharing warm slices with friends on a rainy afternoon made them an instant favorite in our home.
Ingredients
- Unsalted butter: 1 cup (225 g), melted and slightly cooled
- Light brown sugar: 1 cup (200 g), packed
- Granulated sugar: ½ cup (100 g)
- Eggs: 2 large
- Vanilla extract: 2 tsp
- All-purpose flour: 1 ½ cups (190 g)
- Old-fashioned rolled oats: 1 cup (90 g)
- Baking powder: ½ tsp
- Baking soda: ½ tsp
- Salt: ½ tsp
- Light brown sugar (swirl): ⅓ cup (67 g), packed
- Ground cinnamon (swirl): 1 ½ tsp
- Unsalted butter (swirl): 2 tbsp (30 g), melted
Instructions
- Prep the Pan:
- Preheat oven to 350°F (175°C). Line a 9x9-inch (23x23 cm) baking pan with parchment paper, leaving an overhang for easy removal.
- Mix Wet Ingredients:
- In a large bowl, whisk together melted butter, brown sugar, and granulated sugar until well combined.
- Add Wet Additions:
- Add eggs and vanilla extract. Whisk until smooth.
- Combine Dry Ingredients:
- Stir in flour, oats, baking powder, baking soda, and salt just until combined. Do not overmix.
- Prepare Cinnamon Swirl:
- In a small bowl, mix all cinnamon swirl ingredients together until a thick paste forms.
- Layer and Swirl:
- Spread half the blondie batter into the prepared pan. Drop half the cinnamon swirl mixture in dollops over the batter and gently swirl with a knife or skewer.
- Finish Layers:
- Spread the remaining blondie batter on top, then dollop and swirl the rest of the cinnamon mixture.
- Bake:
- Bake for 25–28 minutes, or until the edges are golden and a toothpick inserted in the center comes out with a few moist crumbs.
- Cool and Serve:
- Cool completely in the pan before lifting out and slicing into squares.
Save to Pinterest These blondies have become a staple at our family get-togethers. Kids love swirling the cinnamon, and adults sneak extra squares when no one's looking.
Required Tools
Mixing bowls, 9x9-inch baking pan, whisk, rubber spatula, parchment paper, knife or skewer for swirling.
Allergen Information
Contains wheat (gluten), eggs, dairy (butter). Check oat labels for gluten-free needs.
Nutritional Information
Each serving contains: 235 calories, 11 g total fat, 32 g carbohydrates, 3 g protein.
Save to Pinterest Slice after completely cooling for neat squares. Enjoy the comforting flavors any time you crave a sweet homemade treat.
Common Recipe Questions
- → How do I achieve a distinct cinnamon swirl?
Layer half the blondie batter, dollop cinnamon mixture, swirl gently, repeat with remaining batter and swirl mixture for vivid streaks.
- → Can I use quick oats instead of old-fashioned oats?
Old-fashioned oats provide chewy texture, but quick oats can be substituted for softer bars if preferred.
- → Is it possible to make these dairy-free?
Replace butter with a dairy-free margarine or vegan alternative. Check labels for other ingredients as needed.
- → How should I store the blondies for freshness?
Keep cooled squares in an airtight container at room temperature for up to three days or refrigerate for longer shelf life.
- → Can nuts be added for crunch?
Mix ½ cup chopped pecans or walnuts into the batter before baking for extra texture.
- → What's the best pan size to use?
A 9x9-inch square baking pan yields the suggested thickness and portion—use parchment paper for easy lift-out.