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Butterscotch Blondies Recipe

Insanely buttery Butterscotch Blondies loaded with toasted pecans and topped with a thick layer of Brown Sugar Frosting. These blondies are sinful! So sweet and buttery. They are beyond indulgent. But they are so worth every last calorie.

Butterscotch Blondies cut into squares with whole pecans on top.


This Butterscotch Brownie recipe is from one of my favorite cookbooks, Pastry Queen Parties: Entertaining Friends and Family, Texas Style by Rebecca Rather. I love all three of her cookbooks, especially her first one The Pastry Queen: Royally Good Recipes from the Texas Hill Country’s Rather Sweet Bakery & Cafe.


Not only are her recipes incredibly delicious, but her cookbooks have beautiful photographs that show off not only the food, but provide a glimpse of life in Texas Hill Country. Turning the pages of her cookbooks makes me want to jump in the car and drive to Fredericksburg, Texas.


Could that frosting look any more perfect? Butter and brown sugar make such a marvelous combination.


This recipe makes a big batch of blondies and the thick layer of frosting helps keep them from drying out so they stay moist for days. If they last that long!

Blndie squares on a wooden board.

Butterscotch Blondies Recipe Tips:

You will need a half-sheet pan (13×18-inches) for this recipe.

Instead of using an electric stand mixer, you can use a hand-held mixer.

Butterscotch Blondies squares with whole pecans on top.

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Butterscotch Blondies cut into squares with whole pecans on top.

Butterscotch Blondies

Delicious butterscotch blondies loaded with pecans and topped with a thick layer of rich brown sugar icing.
PREP: 20 minutes
COOK: 30 minutes
TOTAL: 50 minutes



  • 1 cup unsalted butter at room temperature
  • 3 cups packed brown sugar
  • 4 large eggs
  • 2 teaspoons vanilla extract
  • 3 cups all-purpose flour
  • 1 tablespoon baking powder
  • 1 teaspoon salt
  • 1 1/2 cups chopped pecans, toasted


  • 2 sticks unsalted butter
  • 2 cups packed brown sugar
  • 4 cups powdered sugar
  • 1/3 cup half-and-half
  • 2 teaspoons vanilla extract


  • Preheat oven to 350 degrees. Line a half-sheet (13 by 18-inch) pan with foil and grease with butter or cooking spray.
  • Beat the 1 cup butter and 3 cups brown sugar using an electric mixer with a paddle attachment until fluffy (approximately 2 minutes).
  • Add eggs one at a time while beating on medium-low speed and then add vanilla extract. Beat for 1 more minute and scrape down sides of bowl to make sure everything is even in consistency.
  • Combine the dry ingredients, flour, baking powder, and salt in a medium bowl.
  • Beat flour mixture into butter mixture at low-speed.
  • Stir in pecans and pour into prepared pan. Use a spatula to spread the batter evenly.
  • Bake for 25 to 30 minutes. Bars should be set and slightly puffed. Cool completely.
  • For icing, melt 1 cup butter and 2 cups brown sugar in a saucepan over medium heat. Once mixture starts to bubble, decrease heat to medium-low and continue to cook for 2 more minutes, stirring occasionally.
  • Place powdered sugar, half-and-half, and vanilla extract in a mixing bowl and using a paddle attachment beat on medium speed until creamy.
  • Add melted butter mixture and beat to combine.
  • Pool over cooled bars and let icing set for 30 minutes before cutting


Recipe adapted slightly from The Pastry Queen Parties


Calories: 436kcal
Author: Christin Mahrlig
Course: Dessert
Cuisine: American
Keyword: blondies, butterscotch

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Originally published August 24, 2014.

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Disclosure: This post contains affiliate links.

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34 thoughts on “Butterscotch Blondies Recipe”

  1. Thalia @ butter and brioche

    I am so craving one of these butterscotch blondies right now.. they look AMAZING. Pinned!

  2. That is one delicious looking layer of butterscotch! These blondies look incredible, Christin!

  3. Wow, I am totally in love with that thick frosting! Love these decadent butterscotch blondies – they are definitely calling my name!

  4. That frosting!! It looks to die for! As do the blondies … I haven’t had one in forever.

    So so glad we got to meet this past week!

  5. Jess @ On Sugar Mountain

    I want a tub of that frosting on my kitchen counter ASAP! And yes, a batch of these blondies too. But maybe two batches of frosting then. One for blondies and one for me. 😀

  6. Consuelo | Honey & Figs

    What an ingredient list! These brownies look like the most perfect indulgence 😉 Gorgeous!

  7. Ashley | Spoonful of Flavor

    I need to check out that book because these bars are calling my name! Look at that frosting! Pass me a dozen, please!

  8. Gayle @ Pumpkin 'N Spice

    Wow, that frosting is just calling my name! Love how thick and delicious it looks! And I love the butterscotch base, too. Pinned!

  9. Sarah@WholeandHeavenlyOven

    Gahh! That thick-frosted icing looks absolutely amazing! I love butterscotch-anything and these definitely look worth every calorie. 😀

  10. Gorgeous…gotta love the icing. The thing that I liked when I read the directions is the size of pan….these are Texas size. ha! ha!

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