I didn't discover cookie butter until late in my life and I have been trying to make up for lost time ever since. And while Biscoff spread is perfect straight out of the jar by the spoonful, it's also incredible to bake with! These Biscoff Blondies have a fudgy texture, and they're bursting with cookie butter flavor. They are ridiculously quick and easy to make, coming together in minutes in just one bowl - no mixer required!
For more fudgy dessert bars, try these Butterscotch Blondies, Peanut Butter and Jelly Bars, and Salted Caramel Maple Bars!
Biscoff spread gives these dense and fudgy dessert bars the best texture and that epic cookie butter flavor.
- Liz, Flour de Liz
🍭 Short & Sweet Recipe Overview
- ⏲️ Time: Takes less than 10 minutes to prep, and 20 minutes to bake
- 🛒 Ingredients: Needs just 7 ingredients
- 🍽️ Servings: Makes 16 blondies
- 🥣 Difficulty: One bowl, super simple (kid-friendly)
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Why You'll Love this Recipe
- Delicious, fudgy cookie butter bar with a gooey center, and irresistible cozy flavor
- Quick & Easy, this recipe takes less than 30 minutes, one bowl, and no electric mixer
- Perfect for bake sales, potlucks, and picnics, they make great gifts, fit perfectly into a lunch box, and are a fun after-school snack or treat to enjoy with your coffee.
- While these are a great dessert any day of the week, they are the best addition to your Thanksgiving or Christmas dessert table, or even a fun twist for holiday cookie boxes!
- Customizable, add mix-ins or toppings as desired
Whether you're making a batch for school or work lunchboxes, a bake sale, or a cozy coffee pairing, this recipe is as quick and easy as my No-Yeast Chai Bread, Peanut Butter Marshmallow Squares, and Nutella Rice Krispie Treats, and are just as irresistible!
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Ingredients and Notes
Butter - Melting the butter contributes to the soft, chewy texture of these Biscoff Blondies.
Brown Sugar - Brown sugar adds a caramelized flavor to these rich cookie butter treats and also contributes to their absolutely perfect texture!
Biscoff Spread - Lotus Biscoff spread is a common brand of cookie butter, as is Speculoos Cookie Butter from Trader Joe's. Any brand will make delicious cookie butter blondies. You can usually find it in the peanut butter section at the grocery store. I tested this recipe with both creamy Biscoff spread and crunchy. I personally preferred the smoother texture of the creamy spread, the crunchy cookie butter does impact the texture, but it works great too.
See the recipe card below for full information on ingredients.
Substitutions & Variations
Butter - Instead of just melting the butter, consider heating it a bit longer to brown the butter, which will give these quick and easy cookie butter blondie bars an added depth of flavor. You'll want to use an additional tablespoon of butter since more of it will evaporate as it browns.
Mix-ins - A half cup of white chocolate chips will give these gooey Biscoff Blondies added texture and sweetness, and adds some beautiful visual contrast. Other delicious mix-ins include butterscotch chips, milk or dark chocolate chips, cinnamon chips, or maple chips. Chopped nuts could also add a great crunch to these fudgy bars.
Toppings - These super simple cookie butter blondies can be topped with a scoop of vanilla ice cream, a drizzle of white chocolate or caramel, or even some extra melted cookie butter after baking, or topped with pieces of Biscoff cookies before baking - just be sure to keep an eye on them while they're in the oven so the cookies don't burn.
How to Make Biscoff Blondies
Find the complete recipe with measurements in the recipe card below.
- Step 1: Combine melted butter and brown sugar.
- Step 2: Add egg and cookie butter into mixture and stir until fully incorporated.
- Step 3: Add the flour, baking soda, and salt, and mix until just combined. Fold in mix-ins if using.
- Step 4: Spread the Biscoff blondie dough into a parchment-lined 8x8 pan. Bake at 375°F for 20 minutes, until the edges are set and the center is just slightly under-baked. Cool completely, slice into squares, and enjoy!
Biscoff Blondies Tips & Tricks
Tip #1: When mixing the cookie butter spread into the Biscoff Blondies dough, it may be stiff at first and seem like it won't combine, but just keep stirring - it will come together!
Tip #2: This is a very thick dough. It helps to start by pressing it into the pan with your hands, and then smooth out the top with a spatula once it's evenly distributed across the pan.
Tip #3: Be careful not to over-mix as that can lead to a cakey blondie, and we want these cookie butter blondies to come out soft and chewy!
Tip #4: Be sure to let your Biscoff Blondies fully cool before cutting. They will be slightly underbaked when they come out of the oven, but will continue to set as they cool. That helps give us the amazing, fudgy texture.
Tip #5: This recipe can be doubled and baked in a 9x13 baking dish. Bake time may need to be increased a minute or two so keep an eye on them!
Recipe FAQs
If you've followed the recipe correctly, the two main reasons your Biscoff Blondies may come out cakey would be either over-mixing the batter or over-baking the blondies. You'll want them to be mostly baked, but just slightly under-baked since they will continue to set as they cool. If they are baked through when you remove them from the oven, because they will continue to bake in the hot pan, they may be over-baked by the time they have fully cooled.
Biscoff spread is made with Biscoff cookies which are similar to gingerbread cookies. Cinnamon, ginger, allspice, and cloves are the primary spices, but there are also sweet caramel notes. It's a warm, toasty, and inviting flavor, perfect for fall, but delicious all year long!
These Biscoff Blondies are definitely meant to have a soft and fudgy texture inside. Similar to brownies they have a crackly top and a gooey center, but not so gooey that it's runny. They should easily be able to hold their shape when cut into squares.
Yes! These cookie butter dessert bars can be made a few days in advance if needed, and can be stored at room temperature in an airtight container until ready to serve. They're also so quick and easy to make so if you don't plan in advance, they'll still be baked, cooled, and ready to slice in less than an hour!
More Spiced Recipes to try!
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📖 Recipe
Biscoff Blondies
Equipment
- Mixing bowl
- 8x8 pan
Ingredients
- ½ stick butter 4 tablespoons, melted
- ½ cup brown sugar
- 1 egg
- 1 cup cookie butter spread
- 1 cup flour
- ¼ teaspoon baking soda
- ½ teaspoon kosher salt
- ½ cup mix-ins (see notes) optional
Instructions
- Preheat oven to 375℉ and line an 8x8 pan with parchment paper.
- Combine the melted butter and brown sugar.½ stick butter, ½ cup brown sugar
- Add the eggs and cookie butter, and stir until fully incorporated and cohesive.1 egg, 1 cup cookie butter spread
- Add flour, baking soda, and salt, and mix until just combined.1 cup flour, ¼ teaspoon baking soda, ½ teaspoon kosher salt
- Fold in mix-ins if using.½ cup mix-ins (see notes)
- Spread into lined pan and bake 20 minutes.
- Cool completely, cut into squares, and enjoy!
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Notes
Nutrition
Nutrition information is automatically calculated so should only be used as an estimate. Accuracy is not guaranteed.
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