Decadent Black & White Chocolate Blondies: A Magnolia Bakery Favorite

There’s something magical about the aroma of blondies baking in the oven. It takes me back to my college days, late-night study sessions fueled by caffeine and sugary treats. One particular evening, my roommate surprised me with a batch of these black and white chocolate blondies she’d painstakingly recreated from More From Magnolia. The contrast of the rich, slightly bitter dark chocolate against the creamy, sweet white chocolate, all nestled in a chewy, buttery blondie, was simply divine. That first bite was pure bliss, and these blondies have held a special place in my heart (and my recipe collection) ever since.

Recipe Overview

• Prep Time: 15 minutes
• Cook Time: 35-40 minutes
• Total Time: 50-55 minutes
• Yields: 24 2-inch blondies
• Dietary Type: Not Gluten-Free

Ingredients

• 1 ½ cups cake flour (not self-rising)
• 1 teaspoon baking soda
• ¼ teaspoon salt
• ¾ cup unsalted butter, softened
• 1 cup firmly packed brown sugar
• ½ cup granulated sugar
• 2 large eggs, at room temperature
• 2 teaspoons vanilla
• ½ cup chopped white chocolate
• ½ cup chopped semisweet chocolate
• ½ cup chopped walnuts or ½ cup chopped pecans

Equipment Needed

• 13×9 inch baking pan
• Mixing bowls
• Electric mixer or whisk
• Measuring cups and spoons
• Rubber spatula or wooden spoon
• Cake tester or toothpick
• Cooling rack

Instructions

1. Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius). Grease and flour a 13×9 inch baking pan. This prevents the blondies from sticking and ensures easy removal.
2. In a small bowl, combine the 1 ½ cups cake flour, 1 teaspoon baking soda, and ¼ teaspoon salt. Whisk these dry ingredients together to ensure even distribution of the baking soda and salt, which is crucial for proper leavening and flavor balance. Set aside.
3. In a large bowl, cream together the ¾ cup softened unsalted butter with 1 cup firmly packed brown sugar and ½ cup granulated sugar until smooth, about 2 minutes. Use an electric mixer for the best results, but you can also do this by hand with a sturdy wooden spoon. Make sure the butter is truly softened, not melted, to achieve the right consistency. The creaming process incorporates air into the butter and sugar, creating a light and tender blondie.
4. Add the 2 large eggs, one at a time, to the creamed butter and sugar mixture, beating well after each addition. Ensure the eggs are at room temperature; this helps them emulsify properly, resulting in a smoother batter. Then, add the 2 teaspoons vanilla and beat well to combine. The vanilla enhances the overall flavor profile of the blondies.
5. Gradually add the dry ingredients from the small bowl to the wet ingredients in the large bowl. Mix until just combined. Be careful not to overmix; overmixing develops the gluten in the flour, which can lead to tough blondies.
6. Stir in the ½ cup chopped white chocolate, ½ cup chopped semisweet chocolate, and ½ cup chopped walnuts or pecans. Distribute the chocolate and nuts evenly throughout the batter. Don’t be afraid to experiment with different types of chocolate or nuts based on your personal preference.
7. Pour the batter into the prepared 13×9 inch baking pan and spread it evenly.
8. Bake for 35-40 minutes, or until a cake tester inserted at the center of the pan comes out with moist crumbs. Keep a close eye on the blondies during the last few minutes of baking to prevent overbaking. Ovens vary, so start checking for doneness around 35 minutes. The blondies should be golden brown on top and slightly firm to the touch. Remember, it’s better to slightly underbake than overbake to maintain a chewy texture.
9. Allow the blondies to cool completely in the pan before cutting into squares. This allows the blondies to set properly and makes them easier to cut cleanly.

Expert Tips & Tricks

• For extra chewy blondies: Substitute a tablespoon or two of all-purpose flour with cornstarch.
• To prevent the chocolate from sinking: Toss the chopped chocolate and nuts with a tablespoon of flour before adding them to the batter. This helps them stay suspended throughout the blondies.
• Make-ahead tip: The blondie batter can be made ahead of time and stored in the refrigerator for up to 24 hours. Let it come to room temperature slightly before baking.
• Even baking: Rotate the pan halfway through the baking time to ensure even browning.
• Don’t have cake flour? Use all-purpose flour, but remove 2 tablespoons and replace them with 2 tablespoons of cornstarch. This will mimic the tenderness of cake flour.

Serving & Storage Suggestions

Serve these decadent black and white chocolate blondies at room temperature. They are delicious on their own or served with a scoop of vanilla ice cream. A dusting of powdered sugar adds a touch of elegance.

To store, keep the blondies in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate them for up to a week. You can also freeze them for up to 2 months. Thaw overnight in the refrigerator before serving. To reheat, microwave individual squares for a few seconds until slightly warmed.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	188.5 kcal	N/A
Calories from Fat	93 g	50%
Total Fat	10.4 g	16%
Saturated Fat	5.5 g	27%
Cholesterol	33.4 mg	11%
Sodium	91 mg	3%
Total Carbohydrate	23.1 g	7%
Dietary Fiber	0.8 g	3%
Sugars	15.3 g	61%
Protein	2.2 g	4%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Nut-free: Omit the nuts or substitute with chocolate chips or dried cranberries.
• Different chocolate: Use milk chocolate, dark chocolate, or a combination of all three.
• Gluten-free: Substitute the cake flour with a gluten-free all-purpose flour blend. You may need to add a binding agent like xanthan gum.
• Espresso kick: Add a teaspoon of instant espresso powder to the dry ingredients for a mocha-flavored blondie.
• Seasonal: Add a pinch of cinnamon and nutmeg for a warm, autumnal flavor.

FAQs (Frequently Asked Questions)

Q: Can I use self-rising flour instead of cake flour?
A: No, self-rising flour contains added leavening agents that will alter the texture and rise of the blondies. Cake flour is essential for achieving a tender crumb.

Q: Why are my blondies dry?
A: Overbaking is the most common cause of dry blondies. Be sure to check for doneness at the 35-minute mark and avoid baking for longer than necessary.

Q: Can I use a different size baking pan?
A: Yes, but you will need to adjust the baking time accordingly. A smaller pan will require a longer baking time, while a larger pan will require a shorter baking time.

Q: Can I freeze the blondie batter?
A: It’s best to bake the blondies before freezing for optimal results. However, you can freeze the batter, but the texture may be slightly different after thawing.

Q: How do I prevent the nuts from burning?
A: Toast the nuts lightly before adding them to the batter. This will enhance their flavor and prevent them from burning during baking.

Final Thoughts

These black and white chocolate blondies are a delightful treat that’s perfect for any occasion. Whether you’re baking for a crowd or simply craving a sweet indulgence, this recipe is sure to please. Don’t be afraid to get creative with the variations and substitutions to make them your own. And most importantly, enjoy the process of baking and sharing these delicious blondies with loved ones. I hope these become a cherished part of your culinary repertoire, just as they have for me. Happy baking!