If you’re ready to fall in love with your next favorite treat, these Chewy REESE’S PIECES Peanut Butter Brownies will sweep you off your feet at first bite. Unapologetically rich, deeply peanut‑buttery, and bursting with the unmistakable crunch and color of REESE’S PIECES, this recipe brings together gooey nostalgia and modern indulgence in one simple pan. Imagine a chewy, golden brownie studded with pops of candy shell—a guaranteed crowd‑pleaser for any occasion!

Chewy REESE'S PIECES Peanut Butter Brownies Recipe - Recipe Image

Ingredients You’ll Need

The magic behind Chewy REESE’S PIECES Peanut Butter Brownies comes down to a handful of pantry staples plus a sprinkle of childhood joy. Each ingredient plays a starring role: buttery richness, two kinds of sugar for caramel-y depth, and, of course, the perfect peanut butter base.

Butter (⅔ cup, melted): Melted butter makes these brownies extra fudgy and adds that signature rich flavor.
Granulated Sugar (1⅓ cups): Classic white sugar brings sweetness and that crackly brownie top.
Light Brown Sugar (1 cup): Adds moisture and a subtle molasses note for deeper caramel undertones.
Large Eggs (4): For structure and chew—don’t skimp here!
Vanilla Extract (2 teaspoons): Boosts the bouquet of peanut butter and gives a warm finish.
Creamy or Chunky Peanut Butter (1 cup): The essential flavor; creamy gives a smooth bite, chunky adds extra crunch.
All-Purpose Flour (2 cups): The body of the brownies—measure carefully for the perfect chew.
Baking Powder (2 teaspoons): Gives a gentle lift so your brownies aren’t too dense.
Salt (¼ teaspoon): Just a pinch wakes up every flavor in the pan.
REESE’S PIECES (½ cup): The star adornment—vibrant color, nutty crunch, and that classic REESE’S flavor burst.

How to Make Chewy REESE’S PIECES Peanut Butter Brownies

Step 1: Prepare Your Pan and Preheat the Oven

Start by preheating your oven to 350°F. For super easy removal and quick cleanup, line an 11 x 13-inch metal or glass baking pan with parchment paper. Leave a little overhang on the sides so you can lift your finished brownies right out—trust me, this step is a total game-changer!

Step 2: Mix the Wet Ingredients

In a large mixing bowl, combine the melted butter, both the granulated and brown sugars, and your peanut butter of choice. Stir everything until it’s lovely and smooth. Next, beat in the eggs one at a time, followed by the vanilla extract and salt. Mixing the wet ingredients thoroughly at this stage creates that classic fudgy peanut butter base in Chewy REESE’S PIECES Peanut Butter Brownies.

Step 3: Whisk the Dry Ingredients

In a separate bowl, whisk together the flour and baking powder until evenly blended. This step ensures your brownies will rise evenly and have a perfectly chewy crumb without any lumps or dry patches.

Step 4: Combine and Fold

Gradually add the flour mixture to the wet ingredients. Gently fold everything together until just combined—watch closely and avoid over-mixing, or you’ll end up with cakey brownies instead of that irresistible chewy texture. You want the batter to be thick and just barely streak-free.

Step 5: Spread and Top

Pour the batter into your prepared pan, smoothing it out all the way to the edges. Now scatter the REESE’S PIECES evenly over the top. Their shells stay crisp during baking and their colors pop, ready to lure everyone in for a taste of Chewy REESE’S PIECES Peanut Butter Brownies magic.

Step 6: Bake to Perfection

Slide the pan into your preheated oven and bake for 30 to 35 minutes. The top should feel set and slightly firm, but the center will remain moist—just like all the best brownies. Let them cool in the pan for at least 30 minutes before lifting out and slicing—patience here is the hardest part, but so worth it for clean, gooey squares.

How to Serve Chewy REESE’S PIECES Peanut Butter Brownies

Garnishes

Turn up the wow factor by adding a drizzle of warm chocolate sauce or a dollop of freshly whipped cream atop each brownie square. If you’re a true peanut butter lover, a sprinkling of chopped, salted peanuts or even a few extra REESE’S PIECES just before serving gives these brownies a bakery-level finish.

Side Dishes

Chewy REESE’S PIECES Peanut Butter Brownies are fantastic with a scoop of classic vanilla ice cream, which perfectly balances out their richness. For a party platter, pair with fresh strawberries or a tall glass of cold milk—it’s the ultimate nostalgic combo!

Creative Ways to Present

Cut your brownies with a heart-shaped cookie cutter for a festive touch at holidays, or layer small brownie squares with ice cream and chocolate sauce in parfait glasses. For a showstopper dessert board, surround your brownies with mini pretzels, sliced bananas, and chocolate dips for a playful twist everyone will love.

Make Ahead and Storage

Storing Leftovers

Any leftover Chewy REESE’S PIECES Peanut Butter Brownies can be kept in an airtight container at room temperature for up to 4 days. Their chewy texture actually improves overnight, making them a great make-ahead treat for lunchboxes or quick snacks.

Freezing

To freeze, let the brownies cool completely, then slice and wrap each square tightly in plastic wrap. Place in a resealable freezer bag and freeze for up to 2 months. Thaw at room temperature or microwave briefly for that just-baked feel—perfect for surprise cravings!

Reheating

If you love your brownies gooey and warm, pop a square into the microwave for about 10-15 seconds before eating. You’ll revive that freshly-baked melty chocolate experience all over again.

FAQs

Can I use natural peanut butter instead of regular?

Yes, you can swap in natural peanut butter, but keep in mind that the oil content varies. Stir your natural peanut butter thoroughly and expect slightly less chew and more crumbly texture, but you’ll still capture that delicious peanut flavor in your Chewy REESE’S PIECES Peanut Butter Brownies.

Do I need to use parchment paper?

Parchment paper makes removing and slicing brownies a breeze, especially with all the gooey bits and candy shell. If you don’t have it, you can butter and flour your pan well, but you may need to cool the brownies a bit longer for clean removal.

Should I use creamy or chunky peanut butter?

Both versions work! Creamy gives super smooth, melt-in-your-mouth squares, while chunky adds a little crunch and extra peanutty bites in each piece. Pick your favorite or use whatever’s on hand—the Chewy REESE’S PIECES Peanut Butter Brownies will turn out fantastic either way.

Why do I need to avoid over-mixing?

Over-mixing incorporates extra air and activates the gluten, turning brownies into cake. For maximum chewiness and that dense, decadent texture, gently fold the ingredients until just combined and stop as soon as the flour disappears.

Can I substitute other candies for REESE’S PIECES?

Certainly! M&M’s or peanut butter chips are fun swaps, but the classic combo of peanut butter brownies and REESE’S PIECES gives these treats that signature look and flavor fans crave.

Final Thoughts

Whether you’re baking for a bake sale, a family gathering, or just a cozy night in, Chewy REESE’S PIECES Peanut Butter Brownies are that one-pan wonder dessert you’ll come back to again and again. Grab your apron and a mixing bowl—these brownies are calling your name!

Chewy REESE’S PIECES Peanut Butter Brownies Recipe

★★★★★

5.2 from 6 reviews

Author: lina
Total Time: 45-50 minutes
Yield: 12–16 brownies 1x
Diet: Vegetarian

Print Recipe

Description

Indulge in these decadent Chewy REESE’S PIECES Peanut Butter Brownies for the ultimate sweet treat. With a rich peanut butter flavor, a chewy texture, and a delightful crunch from Reese’s Pieces, these brownies are sure to satisfy your sweet tooth.

Instructions

Preheat oven: Preheat oven to 350°F.
Prepare pan: Line a 11 x 13 baking pan with parchment paper for easy removal.
Mix wet ingredients: Combine peanut butter, melted butter, sugars, eggs, vanilla, and salt in a large bowl.
Whisk dry ingredients: In a separate bowl, whisk flour and baking powder.
Combine: Slowly mix dry ingredients into wet mixture until just combined.
Spread batter: Smooth batter into pan and sprinkle with Reese’s Pieces.
Bake: Bake for 30-35 minutes until set.
Cool: Let cool for 30 minutes before cutting into squares.