Marshmallow Butterscotch Blondies

Filled with melted butterscotch, chocolate chips and marshmallows, these Marshmallow Butterscotch Blondies are the perfect way to satisfy a sweet tooth. The marshmallow melt into the blondies, creating the most perfect, chewy bars.

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If you love blondies, make sure you check out my Best Ever Blondie recipe!

The first time I made these Marshmallow Butterscotch Blondies was back in 2007. I was looking for the perfect brownie recipe when I came across this recipe and all thoughts of those brownies disappeared. Because I needed these blondies.

I’m still looking for that perfect brownie recipe (one of these days I’ll nail them) but these butterscotch blondies have found a way to my table more than once over the last 13 years. Proving that maybe I love blondies just as much as brownies.

They are sweet. They are gooey. And a little bit definitely goes a long way.

And every time I make them, I wonder why I don’t make them more often.

One of my favorite things about this butterscotch blondie recipe is the addition of the marshmallows. You don’t end up with bits of marshmallows through the blondies when they are finished. The marshmallows melt into the dough, creating this chewy, gooey bar that really is irresistable.

How You Make Marshmallow Butterscotch Blondies

These only take a few minutes to make the batter – they are super easy! Here’s the breakdown:

1. Melt the butterscotch chips and the butter together.
2. Mix the remaining wet ingredients – the brown sugar, eggs, and vanilla.
3. Add in the melted butter/butterscotch chip mixture.
4. Add your dry ingredients – the flour, baking powder, and salt.
5. Finally, stir in the marshmallows and the chocolate chips.
6. Transfer to a baking dish and bake!

Tips and Tricks

• Once you melt the butter and butterscotch chips together, you want them to cool slightly, but the longer the mixture sits, the stiffer your batter will be.
• I think it’s easiest to line your pan with parchment paper. They are pretty sticky and gooey, so the parchment helps them to come out easily.
• The batter is stiff and sticky. I will sometimes spray my fingertips with nonstick cooking spray to press it into the pan, but I actually think it’s easier to just use wet fingers. I will run my hands under the water and then press the dough down. When your hands are wet, the dough shouldn’t stick.
• It’s kind of hard to tell when these blondies are done. I watch for them to look golden brown on top and for the edges to be set. The center will still look somewhat underdone, but it will set up as the blondies cool.
• These are super rich, so a little goes a long way. That is why the serving size shows as 18 bars in a 9-inch pan. (The blondies in the photos were cut larger, though.)

More Blondies and Brownies

Fudgy Nutella Brownies
Caramel Brownies
Orange Blondies Recipe
Gooey Slow Cooker Caramel Blondies
Spice Cake Caramel Blondies

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Marshmallow Butterscotch Blondies

4.34 from 3 votes

Author: Deborah Harroun

Prep Time: 15 minutes minutes

Cook Time: 20 minutes minutes

Total Time: 35 minutes minutes

Servings: 18 servings

Course: Dessert

Cuisine: American

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Filled with melted butterscotch, chocolate chips and marshmallows, these Marshmallow Butterscotch Blondies are the perfect way to satisfy a sweet tooth. The marshmallow melt into the blondies, creating the most perfect, chewy bars.

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Ingredients

• ▢ 1 cup butterscotch chips
• ▢ 1/2 cup unsalted butter cut into pieces
• ▢ 2/3 cup packed light brown sugar
• ▢ 2 eggs
• ▢ 1 teaspoon vanilla extract
• ▢ 1 1/2 cups all-purpose flour
• ▢ 2 teaspoons baking powder
• ▢ 1/2 teaspoon salt
• ▢ 2 cups miniature marshmallows
• ▢ 1 cup semi-sweet chocolate chips

Instructions

• Preheat the oven to 350ºF. Spray a 9-inch square baking dish with nonstick cooking spray or line with parchment paper.
• In a microwave safe bowl, combine the butterscotch chips with the butter. Microwave on high in 15 second intervals, stirring occasionally, until melted and smooth. Set aside.
• In a large bowl, stir the brown sugar, eggs and vanilla together. Mix in the melted butterscotch chip mixture.
• Add the flour, baking powder and salt and stir until combined. The batter will stiffen up the longer it sits as the butter sets back up, so make sure not to wait too long.
• Stir in the marshmallow and chocolate chips.
• Transfer the batter to the prepared baking dish and press evenly into the pan.*
• Bake the blondies until they are golden brown and set up along the edges, about 20 minutes.
• Cool, then cut into squares.

Recipe Notes:

*This is a very thick batter/dough, so I like to get my fingertips wet and press it down evenly. It will stick if your hands aren’t wet enough, so you may need to wet them a couple of times.

very slightly adapted from allrecipes.com

Nutrition information provided as an estimate only. Various brands and products can change the counts. Any nutritional information should only be used as a general guideline.

 

Nutrition Information

Serving: 1bar, Calories: 258kcal (13%), Carbohydrates: 33g (11%), Protein: 2g (4%), Fat: 13g (20%), Saturated Fat: 9g (56%), Polyunsaturated Fat: 1g, Cholesterol: 34mg (11%), Sodium: 138mg (6%), Fiber: 1g (4%), Sugar: 24g (27%)

Keywords: blondie recipe, butterscotch blondies