Dessert

Ultimate Blondies with Chocolate Chips

June 14, 2019
3 blondies stacked together next to glass of milk

These Ultimate Blondies are inspired by a longtime family favorite dessert recipe called Disappearing Brownies. The brownies are thin and barely hold together the combination of marshmallows and chocolate chips in a butterscotch batter. They’re delicious, but I wondered how that combination might work in a more traditional blondie recipe. I tested several versions (giving extras to friends and children so as not to eat them all myself), and I may just have come up with the best blondies recipe ever (though possibly I am biased). Try them and see what you think. 

How to make my Ultimate Blondies Recipe

First, preheat the oven to 350 degrees and prepare a 9×9 pan by spraying it with cooking spray and lining with parchment paper. I like to fold the parchment paper so it just covers the bottom and goes up two sides. That way, you avoid getting paper stuck in the corners of your blondies when you take them out. 

ingredients for ultimate blondies: brown sugar, marshmallows, butterscotch chips, chocolate chips, flour, butter

Once your pan is ready, you melt butter and mix it with brown sugar, then add egg and vanilla extract. You add flour, baking power, and salt, and then fold in butterscotch chips, marshmallows, and chocolate chips. No need for a mixer—you can stir it all together by hand.

blondies ingredients mixed together in bowl

It’ll be packed full with goodies, but you can still fold them all in and then scrape into the prepared pan.

blondies in 9x9 pan, ready for oven

Bake for 20-25 minutes, and they’re done. Once they are cool, you can cut around the sides that don’t have parchment up them, and gently pull out the whole block. Slice and serve! 

baked blondies in 9x9 pan

Note: if you don’t have a 9×9 pan, you can use an 8×8 pan. If you do that, however, the blondies will be thicker and will require additional cooking time. Test them to make sure they are done (see below in section on when blondies are done). And if you’re considering buying a 9×9 pan (great for blondies and brownies!), I love the nonstick finish and easy-transport covers that come with these.

Ingredient tips

A few notes on the ingredient list for this recipe. Either light or dark brown sugar is fine to use, though I usually make them with light brown sugar. And, you can use either bittersweet or semisweet chocolate chips. Or a combination of both! 

How do you know when blondies are done?

Blondies are done with the edges are golden and crispy, and the middle is just set (i.e., it does not wiggle when you nudge the pan). The best way to know for sure is to check with a cake tester or toothpick. Stick your tester in the middle of the brownie pan. If it comes out with just a few crumbs on it, the blondies are done. If you hit a melted chocolate chip, and your toothpick comes out with chocolate on it, that’s fine too. You may want to test in another place to make sure.

What are blondies, and what’s the difference between blondies and brownies?

Both blondies and brownies typically include flour, sugar, butter, and eggs. But brownies are chocolate-based and often use cocoa powder and white sugar, while blondies typically do not use cocoa powder and use brown sugar instead of white. Blondies often have a butterscotch flavor, which comes from the brown sugar in the ingredients. Both blondies and brownies can be chockfull of other ingredients such as nuts, dried fruit, white chocolate chips, or coconut flakes. 

How to store blondies

Blondies should be stored in an airtight container after they have been cooled and cut. You can store them for about 3 days at room temperature until they start to taste a bit stale. You can also freeze blondies for up to 3 months. 

Other recipes you might like

If you are looking for other fun and kid-friendly desserts, check out my Butter Cookie Cutouts recipe or my Nutella Crepes recipe—they are way less complicated than you think. For something a little fancier, you might enjoy my Mango-Coconut Yogurt Parfaits.

Ultimate Blondies with Chocolate Chips and Marshmallows

Ultimate Blondies with Chocolate Chips and Marshmallows

Yield: Serves 8
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes

This ultimate blondies recipe includes lots of chocolate chips, butterscotch chips, and mini marshmallows in a traditional blondie butterscotch base.

Ingredients

  • 6 T. unsalted butter
  • 1 c. light brown sugar (about 7 oz)
  • 1 egg
  • 1 t. vanilla
  • 1 c. all-purpose flour (4.8 oz)
  • 1/2 t. baking powder
  • 1/4 t. kosher salt
  • 1 c. butterscotch chips (6.3 oz)
  • 1 c. chocolate chips (6.8 oz)
  • 1 c. mini marshmallows (2 oz)
  • cooking spray, for pan

Instructions

    1. Preheat oven to 350.
    2. Spray 9x9 pan with cooking spray, then line pan with parchment paper on the bottom and up two sides.
    3. Melt butter in microwave.
    4. Mix with brown sugar until smooth. Add egg and vanilla, and mix until smooth. Add flour, baking powder, and salt, and mix until all the flour is incorporated into the mixture. It will be thick.
    5. Fold in butterscotch chips, marshmallows, and chocolate chips until just combined. Mixture will be stiff, but you’ll be able to fold them all in.
    6. Use a spatula to scrape into pan.
    7. Bake for 20-25 minutes, until sides are lightly browned and center is just firm.

Notes

Blondies are done with the edges are golden and crispy, and the middle is just set (i.e., it does not wiggle when you nudge the pan). The best way to know for sure is to check with a cake tester or toothpick. Stick your tester in the middle of the brownie pan. If it comes out with just a few crumbs on it, the blondies are done. If you hit a melted chocolate chip, and your toothpick comes out with chocolate on it, that’s fine too. You may want to test in another place to make sure.

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Nutrition Information:
Yield: 8 Serving Size: 1
Amount Per Serving: Calories: 467 Total Fat: 22g Saturated Fat: 15g Trans Fat: 0g Unsaturated Fat: 6g Cholesterol: 46mg Sodium: 146mg Carbohydrates: 67g Fiber: 2g Sugar: 51g Protein: 4g
Nutrition information is provided as a general reference for users courtesy of the online nutrition calculator Nutritionix.

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