Name: cinnamon swirl blondies
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Cuisine: American
Ingredients: 1 cup (226g) unsalted butter, melted; 1 cup (200g) packed light brown sugar; ½ cup (100g) granulated sugar; 2 large eggs; 2 teaspoons vanilla extract; 1 ½ cups (190g) all-purpose flour; ½ teaspoon baking powder; ¼ teaspoon salt; ½ cup (90g) white chocolate chips; 1 tablespoon ground cinnamon; ¼ cup (55g) packed light brown sugar (for swirl); ¼ cup (30g) chopped walnuts (optional)

cinnamon swirl blondies

Published on September 15, 2025

4.8 (245 reviews)

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Prep Time

20 min

Cook Time

25 min

Servings

Why You'll Love This Recipe

✓ Soft, Chewy Texture: A buttery blondie base stays moist while the cinnamon swirl adds a tender contrast.

✓ One‑Bowl Simplicity: All ingredients combine in a single bowl, cutting cleanup and keeping the process stress‑free.

✓ Versatile Treat: Perfect for breakfast, coffee breaks, or a sweet finish to any meal.

There’s something irresistibly nostalgic about a warm, cinnamon‑swirled blondie. The golden, buttery base reminds you of classic brownies, while the fragrant cinnamon ribbon adds a cozy, bakery‑fresh twist. This recipe balances sweet and spice without overwhelming the palate, making it an ideal companion for a steaming mug of coffee or tea. Whether you’re feeding a crowd or indulging in a quiet afternoon snack, these blondies deliver a comforting chew and a burst of flavor that feels both familiar and delightfully new.

1 ½ cups (300 g) light brown sugar Adds moisture and caramel undertones.

2 large eggs, room temperature Helps bind and lift the batter.

2  tsp pure vanilla extract Enhances the sweet‑spice profile.

1 ½ cups (190 g) all‑purpose flour Creates the classic blondie crumb.

½  tsp baking powder Gives a slight rise without a cake texture.

¼  tsp salt Balances sweetness.

¼  cup (60 ml) milk Adds moisture; substitute almond milk for dairy‑free.

½  cup (100 g) granulated sugar Creates a slight crisp on top.

2  tsp ground cinnamon Key flavor for the swirl.

Instructions

Prepare the batter

In a large bowl whisk melted butter with brown sugar until smooth. Add eggs one at a time, beating after each addition, then stir in vanilla. The mixture should be glossy and slightly thick.

Pro Tip: Use room‑temperature eggs to prevent curdling.

Mix dry ingredients

In a separate bowl whisk flour, baking powder, and salt together. This ensures even distribution of leavening and prevents pockets of flour in the final blondie.

Pro Tip: Sift the flour for an ultra‑light texture.

Combine wet and dry

Gradually fold the dry mixture into the wet batter, adding milk at the end. Stir just until no flour streaks remain; over‑mixing will create a tough crumb.

Pro Tip: Scrape the bowl sides with a rubber spatula for even mixing.

Create the cinnamon swirl

In a small bowl combine granulated sugar, cinnamon, and a splash of melted butter to form a paste. Spread half of the blondie batter in a greased 9‑inch pan, dollop the cinnamon paste, then layer the remaining batter. Use a knife to swirl gently, creating a marbled effect.

Pro Tip: Do not over‑mix the swirl; a gentle motion keeps distinct ribbons.

Bake and cool

Bake in a preheated 350°F (175°C) oven for 22‑25 minutes, or until the top is lightly golden and a toothpick inserted near the edge comes out clean. Allow the blondies to cool in the pan for 10 minutes before transferring to a wire rack; this prevents breaking.

Pro Tip: Cool completely before cutting for clean squares.

Expert Tips

Tip #1: Chill the batter

Refrigerate the mixed batter for 15 minutes before spreading. A cooler batter holds the cinnamon swirl better, resulting in cleaner ribbons after baking.

Tip #2: Use a light hand with the swirl

Drop the cinnamon paste in small spoonfuls and swirl quickly. Over‑mixing blends the flavors, while a light touch preserves the visual contrast.

Tip #3: Finish with a sprinkle

Just before baking, lightly dust the top with a mixture of cinnamon and sugar.

Storage & Variations

Store cooled blondies in an airtight container at room temperature for up to 4 days; they stay soft thanks to the butter. For longer storage, freeze individual squares wrapped in parchment and reheat briefly. Swap cinnamon for pumpkin spice in autumn, or fold in white chocolate chips for extra decadence.

Frequently Asked Questions

Yes, brown sugar will add extra moisture and a deeper caramel flavor, but the top will be less crisp. For a balance, use half brown and half white sugar.

Keep the cinnamon paste thick and apply it in small dollops. Swirl quickly with a knife or skewer; the less you move it, the sharper the ribbons stay.

Absolutely. Replace the all‑purpose flour with a 1‑to‑1 gluten‑free blend and follow the same method. The texture remains tender, and the flavor is unchanged.