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Say hello to the best biscoff blondies ever! These blondies have a layer of biscoff and the perfect crinkle top. You only need 9 ingredients to make these cookie butter blondies and no mixer required!
After my biscoff brownies were so beloved by readers, I knew I had to make a blondie version. These cookie butter blondies have the gooiest texture and you can add chocolate chips if you want!
Why You'll Love These Biscoff Blondies
- You only need 9 ingredients to make these biscoff blondies! Plus, it’s using simple ingredients that you probably already have in your pantry.
- You don’t need any fancy equipment or a mixer to make them, and no mixer required!
- If you want to give these a chocolate kick you can add chocolate chips to the batter.
- Looking for a dairy free recipe? These biscoff blondies can be made with dairy free ingredients!
- This is a freezer friendly recipe, so you can always have cookie butter blondies on hand.
- Butter: feel free to use regular butter or vegan butter if you need this recipe to be dairy free.
- Flour: I tested this recipe with all purpose flour.
- Eggs: I haven’t tested this recipe with egg substitutes and I don’t recommend it!
- Biscoff Cookies: these biscoff cookies go on top of the batter just before baking, it is totally optional but gives a nice crunch!
- Biscoff: you don’t have to use the biscoff brand and instead can use any other cookie butter! You can find biscoff spread at Trader Joe’s, Target, President’s Choice or your local grocery store. Feel free to use the smooth or the crunchy version!
Step By Step Instructions
Note: Full ingredient measurements and instructions can be found in the recipe card at the bottom of this page.
Step 1: Cut a piece of parchment paper so it fits into your 8x8 baking pan, leaving a slight overhang. Place this in the pan and fold the parchment that is overhanging to form a crease in the shape of the square pan.
Step 2: Take the parchment paper out and place it on a flat surface. Spread the biscoff cookie butter onto the square that you’ve made on the parchment paper, create one large cookie butter square. Place in the freezer while you work on the blondies.
Step 3: Preheat the oven to 350°Fahrenheit and line your 8x8 baking pan with parchment paper, making sure you have some overhanging so you can easily remove the blondies when they’re done.
Step 4: Melt the butter in the microwave or in a small pan on the stove. Pour the melted butter into a medium bowl.
Step 5: Add the sugars and whisk into the melted butter. Whisk until it forms a thick paste that pulls away from the sides of the bowl.
Step 6: Add the eggs and vanilla extract and whisk to combine.
Step 7: Pour in the flour and salt and whisk briefly, until it is just combined - you don’t want to over mix it!
Step 8: Pour half of the blondie batter into the prepared pan. Take out the cookie butter layer from the freezer and gently peel it from the parchment paper. If it doesn’t peel off easily, place it back in the freezer for another 5 minutes. Place the cookie butter square on top of the blondie batter.
Step 9: Pour the rest of the blondie batter on top, using an offset spatula to smooth it into an even layer. Sprinkle over crushed biscoff cookies on top of the batter. This is totally optional but so delicious!
Step 10: Bake for 30-40 minutes. Check the biscoff blondies at 30 minutes and insert a toothpick in the middle, it should come out with some wet crumbs but not wet batter. The top of the biscoff blondies will be crinkly. Let the blondies cool completely before slicing.
FAQs and Expert Tips
You don’t have to use the Biscoff spread brand of cookie butter if you can’t find it! Feel free to use any cookie butter that is available to you, you can find it at Trader Joe’s, President’s Choice or your local grocery. You can also order it on Amazon!
All you need to do is use vegan butter! Cookie butter is dairy free (it’s vegan!) so that is the only change you would need to make.
Definitely, the best kind of blondies have a gooey texture with that perfect crinkly top. To make sure your cookie butter blondies are gooey you don’t want to overbake them or use too much flour, so check out my tips below on measuring flour!
How can I tell when these blondies are ready?
I suggest checking them at the 30 minute mark. Insert a toothpick in the middle of the blondies and it should come out with some wet crumbs, but not wet batter.
- Properly measure your flour - I highly recommend using a $15 kitchen scale to weigh your dry ingredients (metric measurements are in the recipe card below). If you aren't using a scale, use the scoop and level method. Using too much flour will make your biscoff blondies dry!
- Add Chocolate Chips - if you want some chocolate flavor in there then feel free to add about ⅓ -½ cup of chocolate chips!
- Whisking the wet ingredients - make sure to whisk the melted butter with the two sugars until a thick paste forms and it begins to pull away from the sides of the bowl. This is what gives us that crinkly top!
- Freezing the cookie butter layer - if your cookie butter layer doesn’t easily peel away from the parchment paper, give it another 5 minutes or so in the freezer! We want to have one thick layer of cookie butter to put on top of the biscoff blondie batter.
Storage and Freezing Instructions
Store these biscoff blondies at room temperature in an airtight container for up to 4 days. Freeze the sliced blondies in a freezer bag, let them thaw completely before enjoying.
More Biscoff Recipes You'll Love
- ¾ cup Lotus Biscoff Spread (or other Speculoos cookie butter spread brand)
- ¾ cup butter, melted (regular or vegan)
- ¾ cup light brown sugar
- ¾ cup granulated sugar
- 2 eggs
- 1½ teaspoons vanilla extract
- 1¼ cup + 2 Tablespoons all-purpose flour SEE NOTES
- ¾ teaspoons salt
- 4-5 Lotus Biscoff cookies, roughly chopped (optional)
- Cut a piece of parchment paper so that it fits into your an 8×8 square baking pan, leaving some hanging over the edges. Place it in the pan and fold the parchment that is overhanging to form a crease in the shape of the square pan.
- Remove the parchment from the pan and place it on a flat surface like a cookie sheet, cutting board, or cooling rack. Spread the cookie butter onto the parchment in the shape of the square pan, so that it will fit into the baking pan in one piece. Freeze while you make the blondies.
- Preheat the oven to 350°F and line an 8x8 square baking pan with parchment paper. Leave parchment paper hanging over the sides of the pan so that you can easily remove the blondies from the pan later.
- Melt the butter in the microwave or in a small pan over the stove. Transfer the melted butter to a medium sized bowl.
- Add in both the sugars and use a whisk to whisk the butter and sugars together. Keep whisking until the mixture resembles a paste that pulls away cleanly from the side of the bowl when you mix it.
- Add the eggs and vanilla and mix again.
- Pour the flour and salt into the bowl and mix with the whisk until just combined (do not over mix!).
- Pour half of the batter into the lined baking pan, then take the cookie butter out of the freezer, peel it from the parchment (it should come off easily and in one piece, but if not you can leave it in the freezer for another 5 minutes), and place the whole piece on top of the blondie batter.
- Pour the remaining blondie batter on top of the cookie butter into the pan and smooth into an even layer.
- Sprinkle crush biscoff cookies on top of the batter if desired (adds some crunch and more biscoff flavor).
- Bake for 30-40 minutes*. Begin checking the blondies at 30 minutes by inserting a toothpick in the middle. The top of the blondies should be crinkly and the toothpick should not come out clean. The blondies are ready when the toothpick has a few wet crumbs, but not wet batter.
- Let the blondies cool completely before slicing. Enjoy!
The calorie information provided for this recipe is an estimate. The accuracy of the calories listed is not guaranteed.