Best Blondie Recipe

The BEST blondie recipe yields buttery soft and chewy cookie bars with vanilla-caramel undertones. It's a quick and easy recipe with no mixer needed. Get creative and swap the walnuts and white chocolate chips for your favorite add-ins! Be sure to check out the how-to video!

Prep time: PT15M

Cook time: PT25M

Total time: PT40M

Rating

4.92 stars (874 reviews)

Keywords

blondie bars, blondie recipe, blondies, chewy blondies, cookie bars, dessert bars, easy baking

Ingredients

1 cup unsalted butter (melted)
1 ¼ cup brown sugar (firmly packed (see note))
½ cup granulated sugar
2 large eggs + 1 egg yolk (room temperature preferred)
2 teaspoons vanilla extract
2 ¼ cups all-purpose flour
2 teaspoons cornstarch
½ teaspoon baking powder
1 teaspoon salt
⅔ cup white chocolate chips ((see note))
1 cup chopped walnuts ((may omit, see note))

Cuisine

American

Steps

Preheat oven to 350F (175C) and line a 13x9 metal baking pan with parchment paper (or lightly grease and flour the pan).
Combine melted butter and sugar in a large bowl and stir well.
Add eggs, egg yolk, and vanilla extract and stir until completely combined. Set aside.
In a separate bowl, whisk together flour, cornstarch, baking powder, and salt.
Gradually stir the dry ingredients into wet until just combined.
Fold in white chocolate chips and nuts, if using.
Spread blondie batter into prepared pan and transfer to oven.
Bake on 350F (175C) for 25-30 minutes or until a toothpick inserted in the center comes out clean or with a few fudgy crumbs.
Allow to cool before cutting and enjoying

Nutitrion

Serving Size: 1 blondie (calorie count includes nuts and chips)
Calories: 370 kcal
Carbohydrates: 46 g
Protein: 4 g
Fat: 20 g
Saturated Fat: 11 g
Cholesterol: 70 mg
Sodium: 181 mg
Sugar: 29 g
Unsaturated Fat: 7 g

Reviews

Carrie on 2026-07-26 (5 stars):
Thank you so much!!! After coming from another website and their blondie recipe that failed horrendously, (I think their sugar to flour ratio was way off) I was determined I was going to successfully make blondies!! It irritates me so bad when a recipe doesn’t turn out! I haven’t tasted these yet, but I pulled them out of the oven and they look beautiful!! Absolutely no issues! Can’t wait to actually try one! I’m much relieved to have not wasted valuable time and ingredients two times in a row 🤣
The SBC Club on 2026-07-21 (5 stars):
This recipe delivers... i reduced the castor sugar to 50 grams -to let the brown sugar shine... the bake turned out fudgy and delicious . Thank you for the recipe
Peggy Conlon on 2026-07-17 (5 stars):
I’ve been making Blondies for many years (I’m old…😂). I’ve tried many recipes but this one is my favorite. Finding this website was similar to finding gold! I have a dear friend who is dying. I’ve made 3 batches of your recipe for her family. When I don’t know what to do for someone, I bake Blondies. Thank you!
Solomon on 2026-07-14 (5 stars):
Wonderful recipe! I was hesitant about the cornstarch at first but this recipe delivers. I cooked in a 9x9 for about 34 minutes instead.
Abigail on 2026-07-05 (5 stars):
This is a delicious recipe! I made it on a whim for my family yesterday because we needed more dessert quick - I underestimated just how many chocolate chip cookies kids could eat - and they did not disappoint. I read through the comments and made a small adjustment (-10g sugar) and swapped in chocolate feves for the white chocolate. I will be adding this recipe to my rotation of sweets for family events!
Michelle on 2026-07-03 (5 stars):
Love these! I always brown the butter though and comes out fantastic.
Emmy D on 2026-06-29 (5 stars):
These were good. For every recipe I make, I use salted butter and a few pinches of salt. It makes the ratio perfect! I also did not brown my butter( I am 11 years old) and it was great. I also did not have enough brown sugar, so I used what I had(about 1/4 cups) and used granulated sugar+molasses. This recipe is very flexible.
Dan on 2026-06-27 (2 stars):
Love the caramel flavour of the brown butter but this was WAY too sweet for me!!
Paula Crouse on 2026-06-20 (5 stars):
LOVE THESE, THEY ARE DELICIOUS.
Brooke on 2026-06-07 (5 stars):
The flavor is great, but when I tried making it with brown butter they came out really flat. Why is that?