Classic Blondies with a Crackly Crust

Classic Blondies with a crackly crust are made in one bowl, without a mixer. Rich, butterscotch-y and deeply satisfying, these blondies are comfort food at it’s finest.

a stack of three blondies being sprinkled with powdered sugar

A blondie is not just a brownie without the chocolate. A classic blondie has deep butterscotch flavor and an ooey, gooey crumb.

What is butterscotch flavor? It is a special and specific flavor with notes of butter, molasses, vanilla and salt. The molasses flavor comes from the brown sugar in the batter.

One other essential characteristic of a good blondie is the crackly top. There is a special technique that will help create that lovely crackly crust.

Scroll through the photos to see how to make Classic Blondies with a crackly crust:

a bowl of butter and brown sugar with eggs added.
Add the eggs to the melted butter and brown sugar mix
a bowl of blondie batter being mixed
Vigorously stir the eggs into the mix to incorporate air into the batter. This will help form the crackly crust on top.
baked blondies in a pan on a cooling rack
Line the pan with parchment paper to make it easy to remove the baked blondies.

Tips for making and storing Classic Blondies:

  • The recipe can be doubled and baked in a 9″x 13″ pan.
  • Butter the pan and line with parchment paper. This not only prevents sticking, it makes it much easier to lift the blondies out of the pan.
  • Stirring the batter vigorously after adding the eggs will incorporate air into the batter. This will help form a crackly crust on the top of the blondies as the bubbles rise to the surface in the oven. If you prefer a soft top you can skip that step.
  • Cool the blondies in the pan then use the parchment to transfer them to a cutting board.
  • If you like to frost your blondies, you can use American Buttercream, White Chocolate Ganache, Ermine Frosting or Cream Cheese Frosting.
  • The Blondies will keep at room temperature for several days.
  • Iced or un-iced blondies can be frozen. If they are iced, layer them with parchment paper or plastic wrap to prevent them from sticking together. They are delicious straight from the freezer.
Three blondies on a white plate
a hand holding a blondie

You might also like these other blondie recipes, Sourdough Blondies, Butterscotch Ripple Blondies and Malted Milk Blondies

For you chocoholics I’ve got recipes for the blondies’ cousin: Fudgy Brownies, Sourdough Brownies, Habanero Brownies, Chocolate Cherry Brownies, Malted Milk Brownies, Roasted Beet Brownies, and White Chocolate Raspberry Brownies.

If you love this recipe as much as I do, I’d really appreciate a 5-star review.

a stack of blondies on a white plate
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5 from 1 review

Classic Blondies

Classic Blondies are super easy to make and extremely satisfying.
Prep Time20 minutes
Bake Time25 minutes
Total Time45 minutes
16 blondies
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  • 6 oz unsalted butter (melted)
  • 12 oz brown sugar (1 ½ cups)
  • 3 large eggs
  • 1 tablespoon vanilla extract
  • 7 ½ oz all purpose flour (1 ½ cups, see note)
  • ½ teaspoon table salt


  • Preheat the oven to 375 °F. Butter a 9" square baking pan and line with parchment paper. You can just butter the pan but the parchment makes it much easier to remove the blondies from the pan.
  • In a large bowl, combine 6 oz unsalted butter (melted) with 12 oz brown sugar. Add 3 large eggs and 1 tablespoon vanilla extract. Mix to combine then stir vigorously for 30 seconds.
  • Add 7 ½ oz all purpose flour and ½ teaspoon table salt. Spread the batter into the pan.
  • Bake until the center springs back when lightly pressed, and a toothpick inserted in the center comes out with a few wet crumbs, about 25 minutes.
  • Cool to room temperature before removing from the pan and cutting into 16 squares.

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If measuring the flour by volume use the “dip & sweep” method. That is, dip the measuring cup into the flour bin, overfill it, then sweep away the excess.


Serving: 1blondie | Calories: 220kcal | Carbohydrates: 31g | Protein: 3g | Fat: 10g | Saturated Fat: 6g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.4g | Cholesterol: 54mg | Sodium: 92mg | Potassium: 58mg | Fiber: 0.4g | Sugar: 21g | Vitamin A: 310IU | Calcium: 27mg | Iron: 1mg
Have you tried this recipe?Mention @eileen.bakingsense or tag #bakingsense!

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  1. The directions say to mix granulated and brown sugar, the recipe only calls for brown sugar. Is there supposed to be granulated sugar in it too?