These Biscoff crumb bars are crazy rich but I can’t resist them! A thick and chewy cookie base topped with a layer of melty Biscoff spread, then roasted marshmallows and a crunchy crumb topping with a Biscoff drizzle…holy heaven!
We’ve been loving making campfire banana boats this summer and on a whim I made the most delicious Biscoff version. Immediately we all obsessed that it was the best banana boat ever but it didn’t stop there. By the next morning I’d barely slept as I kept dreaming of turning them into a dessert bar.
I debated sooooo much on every aspect of these bars but nothing as much as the base. Finally I decided on a snickerdoodle cookie base and I’m telling you, I am trying so hard to be humble but they are amazing. Even my family agrees, best dessert ever.
That slightly salty crumb topping is essential to balance this overly sweet bar and the marshmallow amount is totally up to you. I like a little less while my kids want more goo!
What is Biscoff?
Biscoff is a spread, similar in texture and consistency to peanut butter, made of ground up Biscoff cookies mixed with fat, flour and sugar.
What Flavor is Biscoff?
Biscoff spread and cookies have a warm caramel-y flavor with hints of brown sugar and cinnamon.
Where to Buy Biscoff?
You can find Biscoff at most grocery stores. I’ve seen it at Kroger stores, Walmart, Target, Trader Joe’s, Harmon’s, etc. You’ll find it either by the peanut butter and other nut butters or on the cookie aisle.
When you find it, grab a jar for this recipe and then grab another one and make our Biscoff stuff snickerdoodle cookies. You’ll thank me later!
Ingredients for Biscoff Crumb Bars
Now that we have all those logistics out of the way and you know what you are looking for and where to look for it, here are the other ingredients you will need…
- Butter: should be unsalted and softened so that is whips together with the sugars to be light and fluffy
- Sugar: just regular white granulated sugar
- Brown Sugar: adds richness and flavor
- Vanilla: adds flavor
- Eggs: one egg and an extra yolk will provide a perfect structure for the base of these dessert bars
- Flour: just all-purpose flour
- Salt: enhances all the flavors
- Baking Powder: acts as a leavening agent and gives the bars their rise and fluffiness
- Baking Soda: same purpose as the baking powder
- Cream of Tartar: adds a little tang to the bars that is a snickerdoodle signature
- Cornstarch: keeps the bars chewy but also fluffy
- Biscoff: adds flavor, warmth, and the most delici