Butterscotch Brownies

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Butterscotch brownies, also known as blondies, are rich, chewy and absolutely delicious. Enjoy them plain or top with our homemade brown sugar frosting.

butterscotch brownies in a stack

Butterscotch Brownies with Brown Sugar Frosting

There is something about brownies. They might be one of the most perfect desserts. Now add butterscotch and it is next level. These butterscotch brownies with brown sugar icing are the perfect combination of sweet and salty. They are easy to make and can be whipped up in under an hour. Plus, they are guaranteed to be a hit at any gathering or party.

What You’ll Need

  • For the Batter: Dark Brown Sugar, All purpose Flour, Walnuts, Baking Powder, Salt, Butter, Egg and Vanilla extract.
  • For the Frosting: Butter, Brown Sugar, Milk and Confectioners’ Sugar.

How to Make Butterscotch Brownie Recipe

  • Make the Brownies: Melt the butter and brown sugar in a sauce pan. Stir in egg, vanilla and dry ingredients. Add the batter into a prepared baking dish and bake for 30 minutes. Let cool on a wire rack.
  • Make the Frosting: Bring the butter, brown sugar and milk to a boil in a small saucepan. Stir lightly to combine and reduce the heat. Let it sit for another minute and remove from the heat. Let cool completely. To the mixture, add in the confectioners’ sugar to thicken the frosting. Stir with a wooden spoon until smooth. Spread the frosting over the brownies.
butterscotch brownies cut into squares

Tips and Tricks for Perfect Butterscotch Brownies

  • Use parchment paper: Lining your baking pan with parchment paper makes it much easier to remove the brownies and also makes cleanup a breeze.
  • Cool completely before frosting: If the brownies are too warm when you apply the frosting, it will melt and become too thin. Waiting until the brownies are completely cool ensures a thick, delicious layer of frosting.
  • Store in an airtight container: To keep your brownies fresh, store them in an airtight container at room temperature. They can keep for up to a week.
  • Experiment with add-ins: These brownies can be customized with a number of add-ins. Try adding chocolate chips, toffee bits, or even a sprinkle of sea salt on the frosting for extra flavor.
butterscotch brownies cut into squares

Frequently Asked Questions

Can I use normal sugar instead of brown sugar?

While you can use white sugar, brown sugar is recommended for its rich, molasses flavor which contributes to the classic butterscotch taste.

My frosting is too thin/thick. How can I fix it?

If your frosting is too thin, add more confectioners’ sugar a tablespoon at a time until desired consistency is reached. If it’s too thick, add milk a teaspoon at a time until it becomes spreadable.

Can I freeze these brownies?

Absolutely! Make sure the brownies are completely cool and the frosting is set. Wrap them tightly in plastic wrap and then in foil. They can be frozen for up to 3 months. Thaw at room temperature before serving.

Why are my brownies dry/tough?

Overmixing the batter or overbaking can result in dry or tough brownies. Remember to mix just until the ingredients are incorporated and keep a close eye on them in the oven.

butterscotch brownie squares

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Butterscotch Brownies

Butterscotch brownies, also known as blondies, are rich, chewy and delicious. Enjoy them plain or top with our brown sugar frosting.
Servings: 16 servings
Prep: 10 minutes
Cook: 30 minutes
Total: 40 minutes


Butterscotch Frosting


  • Preheat oven to 350° F. Prepare a 9-inch square baking pan lined with parchment paper or grease with non-stick cooking spray.
  • Melt the butter in a small saucepan. Once melted, remove from the heat and stir in the brown sugar. Set aside to cool.
  • Stir together the eggs and vanilla extract in a small bowl. Mix well. Set aside.
  • In a separate, large bowl, whisk together the flour, baking powder and salt.Pour the egg mixture into the flour mixture. Then add the melted butter and brown sugar mixture. Stir together until combined. Only stir till the flour is combined.
  • Spread the batter evenly into the prepared pan. Place into the preheated 350°F oven. Bake for 30 minutes or until a toothpick inserted into the middle comes out clean.  Cool before frosting.

Frosting Directions

  • In a small saucepan bring butter, brown sugar and milk to a boil. Stir lightly and then reduce heat. Leave on heat for about one minute, and then remove from heat. Let cool COMPLETELY, and add in confectioners' sugar, the more you add the thicker it will get. Stir well with a spoon until smooth.
  • Spread frosting over your brownies. Serve and enjoy!

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Serving: 16g | Calories: 343kcal | Carbohydrates: 54g | Protein: 3g | Fat: 14g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 55mg | Sodium: 176mg | Potassium: 86mg | Fiber: 0.4g | Sugar: 41g | Vitamin A: 431IU | Calcium: 43mg | Iron: 1mg


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