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    Home > Recipes > Brownies and Bars > Biscoff Blondies

    Biscoff Blondies

    Published on November 4, 2022. Last updated on November 28, 2022. By Gabby. 6 Comments

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    Jump to Recipe

    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!

    Three Biscoff blondies stacked with cookie butter center oozing out

    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!

    These chewy biscoff blondies are based off of my chocolate chunk blondies but have a delicious biscoff cookie butter layer inside plus more lotus biscoff cookies on top.

    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.

    Ingredients Needed

    Biscoff blondie ingredients in bowls with labels
    • 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.

    Baking process for biscoff blondies pictured in six steps

    FAQs and Expert Tips

    Where can I find biscoff spread?

    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!

    How can I make this dairy free?

    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.

    Are blondies meant to be gooey in the middle?

    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.

    Biscoff blondies cut into squares with center blondie turned on its side to expose blondie filling

    Expert Tips

    • 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

    • Biscoff Cupcakes
    • Biscoff Butter Cookies
    • Biscoff Cake
    • Biscoff Brownies

    If you make this recipe, let me know how it went in the comments below, I’d love to hear from you! You can also tag me on Instagram or Facebook so I can check it out!

    Batch of biscoff blondies with one piece turned on its side so you can see the filling

    Biscoff Blondies

    Gabby
    These biscoff blondies have a layer of biscoff and the perfect crinkle top. You only need 9 ingredients and no mixer required!
    5 from 3 votes
    Print Recipe Pin Recipe
    Prep Time 15 mins
    Bake 30 mins
    Total Time 45 mins
    Course Dessert
    Cuisine American
    Servings 12 blondies
    Calories 382 kcal

    Equipment

    • 1 Whisk
    • 1 8x8 inch Square Baking Pan
    • Parchment Paper

    Ingredients
     
     

    • 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)

    Instructions
     

    • 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 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!

    Video

    Notes

    Measuring Flour: Properly measure your flour using either a kitchen scale or the scoop and level method.
    Cookie Butter: For an even thicker layer of cookie butter, you can use 1 cup, or up to 1 ¼ cups of cookie butter instead of ¾ cup.
    Freezing the cookie butter: Cookie butter doesn't have to be completely frozen, just firm enough to peel off in one piece. If it doesn’t feel firm enough, freeze for 5 more minutes.
    Baking Time: This will vary depending on your oven. If using a glass baking dish instead of aluminium, the brownies will take longer to bake as well.
    Storage Instructions: Store at room temperature in an airtight container, or un-sliced in the pan. If leaving them in the pan, be sure to cover in plastic wrap or a reusable wrap. They will last around 3-5 days.

    Nutrition

    Calories: 382kcalCarbohydrates: 55gProtein: 5gFat: 16gSaturated Fat: 4gPolyunsaturated Fat: 3gMonounsaturated Fat: 4gTrans Fat: 0.1gCholesterol: 27mgSodium: 252mgPotassium: 62mgFiber: 1gSugar: 31gVitamin A: 579IUCalcium: 20mgIron: 1mg
    Tried this recipe?Let us know how it was!

    The calorie information provided for this recipe is an estimate. The accuracy of the calories listed is not guaranteed.

    « Halloween Candy Cookies
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    Reader Interactions

    Comments

    1. Tamara

      December 21, 2022 at 12:26 am

      5 stars
      Deliciousness! Loved the trick of freezing the Biscoff spread.

      Reply
      • Gabby

        December 21, 2022 at 4:10 pm

        So happy you loved them Tamara!!

        Reply
    2. Penny

      November 24, 2022 at 9:47 pm

      5 stars
      Holy Smokes, these are fantastic. I increased the cookie butter so we'd have lots of gooey stuff inside. Freezing the butter spread on parchment is next level brilliant. These will be in my potluck treat repertoire forever now.

      Reply
      • Gabby

        November 28, 2022 at 3:31 pm

        Hi Penny! I am so happy that you loved the blondies! Thanks so much for taking the time to come back and leave a review 😀

        Reply
    3. Alice

      November 07, 2022 at 4:28 pm

      5 stars
      these were so good. i used salted butter and added chocolate chips and they were devoured by the kids. thank for the recipe will be trying more of your recipes

      Reply
      • Gabby

        November 07, 2022 at 4:49 pm

        Hi Alice! I'm so happy you all loved the blondies! Thanks so much for the review 🙂

        Reply

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