Salted Butterscotch Blondies – Chewy Golden Brown Sugar Bakery Bars

Imagine sinking your teeth into a thick, ultra-fudgy dessert bar brimming with molten pockets of sweet butterscotch, rich brown sugar toffee notes, and a crackly, shiny top sprinkled with delicate crystals of crunchy sea salt. These bakery-style Salted Butterscotch Blondies deliver the ultimate sweet-and-salty balance in every single bite without dragging out an electric mixer. If you need a fast, crowd-pleasing, family-friendly holiday treat that stirs together in one bowl and stays irresistibly soft and chewy for days, you have found the dream recipe. Let’s head straight down to see how quickly these sweet dessert bars come together today!

Why You’ll Love This Recipe

• Unmatched Fudgy and Chewy Texture: Melted butter combined with an extra egg yolk creates dense, gooey centers that never turn dry or cakey.
• Deep Brown Sugar Toffee Notes: Rich brown sugar caramelizes with melted butter and pure vanilla to create an authentic butterscotch foundation.
• Irresistible Sweet and Salty Balance: Flaky sea salt sprinkled over molten butterscotch morsels cuts through the sweetness with gourmet bakery contrast.
• Effortless One-Bowl Preparation: Whisk the batter together by hand in just ten minutes using basic kitchen pantry essentials.
• Crowd-Pleasing Holiday Dessert: Perfectly sturdy and sliceable for Thanksgiving buffets, Christmas cookie platters, potlucks, and bake sales.

Ingredients

• 14 Tablespoons (196g) unsalted butter, melted + slightly cooled
• 1 and 1/2 cups (300g) packed light or dark brown sugar
• 1 large egg + 1 egg yolk, at room temperature
• 1 Tablespoon pure vanilla extract
• 2 cups + 2 Tablespoons (265g) all-purpose flour, (spooned & leveled)
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 1 cup (180g) butterscotch morsels
• flaky sea salt, for sprinkling on top

How To Make Salted Butterscotch Blondies Step by Step

1. Prep Oven and Pan

Preheat oven to 350°F (177°C), line a 9×13-inch metal baking pan with parchment paper leaving an overhang for easy lifting, and grease lightly with nonstick cooking spray.

2. Whisk Wet Ingredients and Brown Sugar

In a large mixing bowl, whisk 14 Tablespoons (196g) unsalted butter, melted + slightly cooled and 1 and 1/2 cups (300g) packed light or dark brown sugar for 1 minute until well blended, glossy, and smooth.

3. Beat in Eggs and Vanilla

Add 1 large egg + 1 egg yolk, at room temperature and 1 Tablespoon pure vanilla extract to the butter mixture, vigorously whisking for a full minute until thick, shiny, and pale in color.

4. Fold Dry Ingredients

Add 2 cups + 2 Tablespoons (265g) all-purpose flour, (spooned & leveled), 1 teaspoon baking powder, and 1/2 teaspoon salt, gently folding with a rubber spatula just until combined without overmixing.

5. Fold Butterscotch Morsels

Gently fold in 1 cup (180g) butterscotch morsels until evenly distributed throughout the thick, glossy dough.

6. Spread, Bake, Garnish, and Cool

Spread the thick batter evenly into the prepared pan, bake at 350°F for 21 to 25 minutes until edges are golden and center is set, immediately garnish with flaky sea salt, for sprinkling on top, and let cool completely before slicing into squares.

Tips For The Best Salted Butterscotch Blondies

• Do Not Skip the Extra Egg Yolk: The additional egg yolk introduces extra fat and natural emulsifiers, guaranteeing a rich, fudgy, and chewy texture rather than a spongy crumb.
• Whisk Butter and Sugar Thoroughly: Whisking the melted butter, brown sugar, eggs, and vanilla vigorously for a full minute dissolves surface sugars, creating a delicate, shiny, papery crust on top.
• Spoon and Level Your Flour: Never scoop directly from the flour bag with a measuring cup; fluff flour with a fork, spoon it into cups, and level flat to avoid dry, crumbly blondies.
• Sprinkle Salt Immediately After Baking: Scatter flaky sea salt over the blondies the moment the pan leaves the oven so the salt crystals melt slightly and cling securely to the warm surface.
• Cool Completely for Clean Slices: Let the blondies cool in the pan on a wire rack for at least 2 hours before slicing; cooling allows the rich butterscotch morsels and butterfat to set cleanly.

Variations

• Deep Molasses Toffee Style: Use dark brown sugar exclusively in the batter to amplify bold caramel richness, deep toffee aromatics, and molasses complexity.
• Extra Butterscotch Crown: Press a handful of extra butterscotch morsels directly across the top of the smoothed batter right before sliding the pan into the oven for an artisan bakery display.
• Gourmet Fleur de Sel Finish: Use coarse French sea salt crystals for the finishing garnish to give each chewy square an elevated, extra-crisp salty crunch.

Storage Instructions

• Room Temp: Store cooled sliced blondies in an airtight container at room temperature for up to 5 days; the brown sugar keeps them remarkably chewy and soft.
• Fridge: Keep blondies stored in an airtight container in the refrigerator for up to 1 week; chilled blondies develop a deliciously dense, fudge-like consistency.
• Freezer: Freeze completely cooled, unsliced blondie blocks or individual squares wrapped tightly in plastic wrap and aluminum foil for up to 3 months; thaw on the counter.
• Reheat: Warm individual blondie bars in the microwave for 8 to 10 seconds or in a 300°F oven for 5 minutes to restore warm, gooey, melted butterscotch pockets.

Serving and Pairing Ideas

• Serve warm blondie bars topped with a generous scoop of rich vanilla bean ice cream or a dollop of sweet dairy whipped cream.
• Pair your sweet afternoon dessert with a hot mug of decaf black coffee, a warm espresso, or herbal chamomile tea.
• Serve alongside a cold glass of whole dairy milk, creamy oat milk, or a steaming mug of spiced apple cider.

Frequently Asked Questions

What makes blondies chewy instead of cakey?

Blondies achieve their signature chewy, fudgy texture from melted butter, a high ratio of brown sugar to flour, and minimal chemical leavening. In this recipe, using melted butter rather than creamed butter prevents excess air pockets from forming, and adding an extra egg yolk ensures maximum moisture and rich chewiness.

Can I use light brown sugar instead of dark brown sugar?

Yes, absolutely! Light brown sugar and dark brown sugar can be used interchangeably in equal amounts. Light brown sugar yields a classic golden color and mild butterscotch flavor, while dark brown sugar provides a darker hue, stronger molasses sweetness, and deeper caramel undertones.

How do I know when the blondies are finished baking?

Keep a close watch around the 21-minute mark. The edges should look firm, lightly golden, and begin pulling away from the sides of the pan slightly, while the center should look set and matte without wobbling. A toothpick inserted into the center should come out clean or with a few moist, sticky crumbs attached.

Why do I need to cool blondies before slicing?

Blondies continue to firm up as they cool in the pan. Slicing into hot blondies straight from the oven will cause the rich brown sugar dough and melted butterscotch morsels to fall apart into a gooey mess. Letting them reach room temperature ensures sharp, beautiful, bakery-clean squares that hold their shape.

Ready to Make It?

There is truly nothing quite like slicing into a freshly baked pan of salted butterscotch blondies and seeing those golden, chewy squares filled with gooey melted morsels and glistening with crunchy sea salt. This simple recipe transforms classic kitchen pantry staples—melted unsalted butter, packed brown sugar, eggs, pure vanilla, all-purpose flour, baking powder, salt, sweet butterscotch morsels, and flaky sea salt—into an unforgettable bakery masterpiece that your whole family will love sharing. We hope you have an absolutely wonderful time baking these sweet dessert bars in your kitchen this week! Go ahead and save this recipe to your favorite fall baking, holiday cookie exchange, and easy bar dessert boards on Pinterest so it is always ready for your next cozy gathering.

More Easy Dessert Recipes You’ll Love

• Peach Sorbet – Sweet Summer Frozen Dessert.
• Pineapple Coconut Smoothie – Tropical Refreshment.
• Homemade Peach Ice Cream – Creamy Fruit Dessert.
• Strawberry Ice Cream – Classic Frozen Treat.

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