Peppermint Chocolate Chip Blondies – Festive Chocolate Peppermint Dessert Bars

You know how some blondies fall apart the moment you slice into them? That used to be my biggest issue.

I thought more chocolate meant better. I’d add an extra handful of chips, then throw in crushed peppermint like it was confetti. The result? A molten middle with overbaked corners and a collapsed center.

This version took patience. And a few ruined pans. But what came out in the end was something I now make every single December. A chewy blondie with clean edges, soft bite, and a peppermint topping that stays crisp. You’ll learn exactly how to make that happen here, with just the right chill time and balance between melt and structure.

These aren’t peppermint brownies. And they aren’t quite peppermint bark either. They borrow from both, in a way that feels satisfying without being messy. If you’ve ever searched for a peppermint brownies recipe but wanted something simpler, this version delivers the same festive flavor in a sturdier, easy-to-share bar.

There’s also one little trick I discovered. The dash that fixes the gooey center and keeps it from sinking. It’s not flour, and it’s not extra egg. I’ll tell you about it after the steps, but it’s changed how I bake every blondie now.

What Makes These Blondies Different from Other Peppermint Recipes?

Every year, I test new peppermint dessert ideas. Some go in the keep pile, others get written off.

But this one stuck because it solved two problems at once. It brought in the smooth chewiness of a traditional homemade brownies texture, while still holding the sharp crunch of peppermint bark desserts. That contrast, soft bar and crisp topping, is what brings people back for seconds.

You get the chocolate richness of peppermint cheesecake brownies without needing a swirl. And they’re far easier to cut and share than peppermint bark brownies recipe types that need chilling or tempering.

They also hold their shape in lunchboxes and cookie tins. I’ve packed them beside these Christmas Tree Brownies and they traveled beautifully.

Why Brown Sugar Is the Backbone of This Blondies Recipe

The moment you mix melted butter with brown sugar, you’ll see the glossy finish. That shine tells you you’re on the right track.

Light brown sugar brings moisture and depth, but also structure. I’ve tested with white sugar in a pinch. The blondies came out pale and drier. Not worth the swap.

I once tried dark brown sugar for a deeper flavor. It worked, but overpowered the peppermint. The light version keeps the balance clean.

If you’re planning to pair these with Peppermint Cheesecake Dip, stay with light brown. The contrast keeps the plate from feeling too rich.

How the Extra Egg Yolk Softens Without Collapsing

One whole egg gives structure, but the extra yolk softens the crumb. It sounds minor, but I promise it matters.

I left it out once, thinking the butter would cover for it. The blondies baked fine, but something was missing. They were too dry, almost like sugar cookies.

That yolk binds the batter just enough without toughening it. The result? You get a chewy center, but one that dosn’t sink or fall apart. This also pairs well with other mint-heavy bars like these Peppermint Bark Cheesecake Bars.

Should You Use Chocolate Chips or Chopped Chocolate?

This is where the blondie game changes.

I’ve used both. If you want clean bites and firm set, chocolate chips hold better. They keep their shape, even in warm bars.

But chopped bar chocolate gives meltier pockets. I love that soft pull when you break one in half. It feels more homemade. For this recipe, I’ve found that using chips inside the batter and chopped chocolate on top gives the best mix of structure and softness.

That blend also complements other small-bar treats like Brownie Gnome Bites where texture matters more than presentation.

Why Chilling the Batter Matters More Than You’d Think

I used to skip this step. I’d mix the batter and head straight for the pan, thinking twenty extra minutes wouldn’t make a difference.

But then I noticed something. When I chilled the batter for just fifteen minutes, the blondies came out more even. The edges rose higher. The middle didn’t sink. The peppermint stayed visible on top instead of melting into the batter.

The chill gives the flour time to absorb the butter fully. It also firms up the chocolate, which helps avoid puddling. If you’ve ever made peppermint brownies and seen the chips float to one side, this step prevents that.

I do the same before baking White Chocolate Peppermint Fudge, letting the mix rest before spreading it out.

Why a Metal Pan and Parchment Change Everything

Glass pans sound convenient, but they don’t bake blondies the way you want them to.

A metal pan heats more evenly. The corners crisp up without burning, and the center bakes through without overcooking the sides. If your peppermint brownies recipe ever turned out dry or uneven, it might not be your fault. It’s the pan.

Parchment helps with clean-up, but more importantly, it makes lifting the bars out smooth and stress-free. I leave an inch overhang on each side. Once cool, I lift the whole block onto a cutting board. That way, the slices stay neat.

The Bake Time Sweet Spot: When It’s Done, But Not Overdone

This blondies recipe bakes at 350°F, and I always check at the 28-minute mark.

The edges should look firm and golden. The center will feel set but still soft if you press lightly. A toothpick should come out with just a few moist crumbs. Not wet. Not bone-dry.

Here’s the key: don’t cut them right away. Let them cool in the pan fully, then refrigerate for at least 30 minutes. I know it’s hard to wait, but the texture changes completely. You’ll get a cleaner cut, and the peppermint stays crunchy on top.

I follow the same rule with Brownie Gnome Bites. Chilling first makes slicing easier and neater.

The Little Dash That Makes a Big Difference

So here’s the part I promised you. The thing that finally fixed my blondies.

It wasn’t the amount of flour. It wasn’t the oven temperature. It was a dash of baking powder. Just half a teaspoon.

It gives the bars just enough lift without turning them into cake. When I left it out, they baked flat and tasted dense. Once I added it, the center stopped sinking, the edges set up higher, and I never looked back.

That dash helped me move from messy trays of peppermint bark brownies to neatly stacked squares that actually hold their shape.

Save and Share Your Peppermint Blondie Story

If these blondies make it to your Christmas table, I’d love to hear how they turned out. Did you stick with chips or try chopped chocolate?

Let me know in the comments. Every baker tweaks things a little differently, and that’s part of what makes it fun.

And don’t forget to save this on your Pinterest board so you can find it again during holiday baking season. Especially once December rolls around and you need something that travels well, holds its shape, and gives that chocolate peppermint flavor everyone asks for.

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Yield: 16 smaller pieces

Peppermint Chocolate Chip Blondies

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These peppermint chocolate chip blondies are a chewy, buttery holiday twist on your classic blondies recipe. Loaded with chocolate chips and topped with crushed peppermint candy, they blend the sweetness of homemade brownies with cool minty flavor. If you’re craving peppermint bark desserts or want an easy spin on peppermint brownies, this recipe brings that festive flavor in bar form. These holiday treats are inspired by peppermint brownie and peppermint bark brownies recipe favorites. A crowd-pleasing peppermint dessert that combines rich chocolate peppermint notes in every bite—an easy win during Christmas baking season.

Prep Time 20 minutes

Cook Time 28 minutes

Additional Time 1 hour

Total Time 1 hour 48 minutes

Ingredients

• 1/2 cup unsalted butter, melted and slightly cooled
• 1 cup light brown sugar, packed
• 1 large egg
• 1 egg yolk
• 1 1/2 teaspoons vanilla extract
• 1 cup all-purpose flour
• 1/2 teaspoon baking powder
• 1/4 teaspoon salt
• 3/4 cup semisweet or dark chocolate chips or chopped bar chocolate
• 1/3 cup crushed peppermint candy, divided

Instructions

1. PREHEAT THE OVEN: Set the oven to 350°F (175°C). Line an 8x8-inch metal baking pan with parchment paper, leaving an overhang on two sides. Lightly grease the parchment if needed.
2. MIX THE WET INGREDIENTS: In a medium bowl, whisk together the melted butter and brown sugar until glossy and smooth. Add the egg and then the egg yolk, whisking well after each addition. Stir in the vanilla extract.
3. COMBINE THE DRY INGREDIENTS: In a separate bowl, whisk together the flour, baking powder, and salt until evenly mixed.
4. MAKE THE BATTER: Add the dry ingredients to the wet ingredients. Use a rubber spatula to fold the mixture together until just combined. The batter will be thick.
5. ADD MIX-INS: Stir in 1/2 cup of the chocolate chips and half of the crushed peppermint. Reserve the rest for topping.
6. CHILL THE BATTER: Place the bowl in the refrigerator and chill the batter for 15 minutes. This helps prevent the chocolate from pooling and improves the texture during baking.
7. ASSEMBLE IN PAN: Spread the chilled batter evenly in the prepared pan. Smooth the top with the back of a spoon. Sprinkle the remaining chocolate and peppermint over the surface, pressing lightly so they adhere.
8. BAKE: Bake for 28 to 33 minutes. Begin checking at 28 minutes. The edges should look golden and set. The center should not jiggle. A toothpick inserted in the center should come out with a few moist crumbs.
9. COOL: Place the pan on a wire rack and let cool completely. For clean slices and the best texture, refrigerate the cooled blondies for 30 minutes before cutting.

Notes

Use coarsely crushed peppermint candy for best results. Finely crushed pieces may melt into the batter. Chilling the batter helps improve structure and prevents overspreading. A metal baking pan ensures even heat distribution.

Nutrition Information:

Yield:

16

Serving Size:

1
Amount Per Serving: Calories: 150Total Fat: 6gSaturated Fat: 3gUnsaturated Fat: 3gCholesterol: 58mgSodium: 68mgCarbohydrates: 19gFiber: 2gSugar: 7gProtein: 4g