M&M Pretzel Blondies
M&M Pretzel Blondies are buttery, chewy bars studded with crunchy pretzels, peanut butter chips, and colorful M&M's. These easy to slice bars deliver sweet and salty contrast and make a perfect easy party dessert or snack. They bake up golden with visible pretzel twists on top, so they look as good as they taste, and they are a guaranteed crowd pleaser.
Equipment
- 9 x 13-inch pan
- Electric Mixer
- Mixing Bowls
- Spatula
- Foil
Ingredients
- 1 cup (2 sticks) unsalted butter, softened Soften to spreadable consistency and provide a rich, tender crumb while adding moisture and flavor to the blondie base; creaming with sugars helps incorporate air for a lighter texture and promotes even baking.
- 1 cup brown sugar Add deep, caramel-like sweetness and moisture balance while enhancing chewiness in the final blondie; brown sugar contributes acidity that interacts with leaveners for subtle lift and complex flavor.
- 1/2 cup granulated white sugar Sweeten and help create a balanced texture by dissolving into the batter to promote browning and a crisp edge; granulated sugar also helps stabilize the structure when creamed with butter.
- 1 large egg Bind ingredients together while contributing moisture and richness; egg proteins set during baking to give structure and a slightly tender, cake‑like interior to the blondies.
- 1/2 teaspoons salt Season and enhance overall flavor while balancing sweetness; a small amount of salt intensifies other flavors and helps control yeastless leavening reactions.
- 2 teaspoons vanilla extract Contribute aromatic sweetness and depth, complementing the buttery, caramel notes of the blondies; vanilla enhances perceived sweetness and rounds out the flavor profile.
- 1 teaspoon baking soda React with acidic components to produce carbon dioxide for gentle leavening and lightness; accurate measurement ensures proper rise without off flavors.
- 2 cups all purpose flour Provide bulk, structure, and a tender crumb through gluten formation when mixed appropriately; flour also absorbs moisture and helps create the characteristic blondie density.
- 1 cup broken pretzels Introduce crunchy, salty contrast and savory crunch when folded into the batter; broken pretzels add texture and bursty flavor pockets throughout each bite.
- 1 cup peanut butter chips Deliver pockets of nutty, sweet flavor and creamy texture that melt slightly during baking; peanut butter chips add richness and complement the salty pretzel pieces.
- 1 cup M&M's (plus a few extra to press on top) Supply colorful, candy-coated bursts of chocolate and sweetness, plus decorative appeal; folding most into the batter and reserving a few for the top creates visual and textural interest.
- 24 small pretzel twists Serve as individual salty crunchy toppers that contrast the sweet, chewy blondie surface; pressing them on before baking yields attractive, portioned garnish and additional texture.
Instructions
- Preheat the oven to 350 degrees F. Line a 9 x 13 inch pan with foil, leaving enough to hand over two opposite edges. Spray lightly with cooking spray.: As the oven warms, you will notice a faint heat rising and the air in the kitchen changing, which helps set the stage for even baking. Lining the pan with foil and spraying it prevents sticking, and the foil makes lifting the entire batch out effortless once cooled. A common oversight is not smoothing the foil into the corners, which can cause batter to pool unevenly, leading to inconsistent thickness across the pan. Ensure the rack is centered so the heat circulates uniformly.
- In a large bowl, use an electric mixer to combine the butter and sugars until smooth. Add the egg, salt and vanilla and mix well. Add the baking soda and flour, and mix just until incorporated. Stir in the broken pretzels, peanut butter chips and M&M's.: As you cream the softened butter and sugars, the mixture will lighten in color and develop a glossy sheen, which signals proper aeration for a tender crumb. The scent will be rich and caramel like. After adding the egg and vanilla , the batter becomes smoother and silkier. When folding in the dry flour , aim for just combined to avoid overworking gluten, which would make the bars tough. The final stir in of pretzels , peanut butter chips , and M&M's distributes pockets of texture; use a spatula to fold gently, preserving those crunchy fragments. One mistake is excessive mixing here, which dulls the contrast between tender crumb and crunchy mix ins. If the batter feels too stiff, do not add liquid, simply be gentle when spreading.
- Spread the batter evenly into the prepared pan. Gently press the pretzel twists into the top, 4 in each row for 6 rows. Press some extra M&M's on top around the pretzels for a more festive look.: When you spread the batter, you should see a glossy surface that levels out with a few swirls. Pressing the small pretzel twists on top creates visible anchors of crunch that bake embedded in the surface. The extra M&M's pressed on top become slightly sunken and glossy after baking, creating appealing color. Avoid pressing the pretzels so deep that they sink below the surface, otherwise their visual charm is lost. If the batter resists spreading, lightly dampen your spatula; a quick, confident smoothing will ensure even thickness.
- Bake for 20 minutes, or until a toothpick inserted into the center of the blondies comes out clean. Allow to cool completely before cutting into 24 pieces. Store in a sealed container.: During baking you will notice the edges pull slightly away from the foil and a golden hue develop across the top, with a gentle crackle forming near the pretzels. The aroma will be buttery and sweet, with faint chocolate notes from the M&M's . A clean toothpick indicates the interior has set while remaining tender; overbaking yields a dry bar, so monitor closely in the final minutes. Letting the pan cool completely is crucial, because cutting warm bars can cause them to crumble and lose shape. Once cool, use the foil overhang to lift the slab out for neat slicing, and keep stored in a sealed container to preserve chewiness.
Notes
- Swap chips carefully Replace the peanut butter chips with chocolate chips or butterscotch chips for a different flavor profile, but keep the same volume so the batter moisture balance remains intact.
- Mix in nuts Fold in chopped toasted walnuts or pecans if you want more crunch, adding up to one cup in place of some pretzel pieces to maintain overall mix in volume.
- Make them smaller Use a 9 by 9 inch pan for thicker bars, increasing bake time slightly and checking with a toothpick for doneness to avoid underbaking.
- Decorate for holidays Press themed candy or colored M&M's on top to suit a celebration, distributing them evenly so every square looks festive.
- Double the batch For larger gatherings, double the recipe and bake in two pans simultaneously, rotating them halfway through if your oven has hot spots.