If you’re a fan of Lotus Biscoff cookies and creamy cookie butter spread, prepare to fall in love with this incredible Vegan Biscoff Sheet Cake. Soft, moist, fluffy, and packed with the warm caramelized flavor of Biscoff biscuits, this cake is the ultimate dessert for anyone who can’t get enough of that iconic cookie butter taste.
Featuring a light vegan Biscoff sponge, pockets of melted Biscoff spread hidden throughout the cake, and a luxurious dairy-free Biscoff cream cheese frosting, every bite delivers pure cookie butter heaven. Finished with swirls of melted Biscoff spread and crunchy cookie crumbs, this cake is simple enough for everyday baking yet impressive enough for birthdays, celebrations, and special occasions.
One of the best things about this recipe is that it’s completely vegan without sacrificing texture or flavor. The sponge remains incredibly moist and tender, while the frosting is rich, creamy, and perfectly balanced. Even non-vegan dessert lovers will be asking for seconds.
Whether you’re baking for family, friends, or simply treating yourself, this Vegan Biscoff Sheet Cake is guaranteed to become one of your favorite recipes.
Why You’ll Love This Vegan Biscoff Sheet Cake
There are countless vegan cake recipes available, but this one stands out for several reasons.
Packed with Biscoff Flavor
Every layer contains delicious Lotus Biscoff goodness, from the sponge to the filling and frosting.
Completely Vegan
No eggs, dairy, or animal products are needed, making this dessert suitable for plant-based diets.
Soft and Moist Texture
The homemade vegan buttermilk creates a wonderfully tender crumb.
Easy to Make
No complicated decorating techniques are required.
Perfect for Any Occasion
This sheet cake is ideal for birthdays, parties, holidays, afternoon tea, or weekend baking.
Make-Ahead Friendly
The cake can be baked ahead and frosted later, making entertaining much easier.
What Makes Biscoff So Special?
Lotus Biscoff cookies have become incredibly popular around the world thanks to their unique flavor profile.
Unlike traditional cookies, Biscoff biscuits feature:
- Caramelized sweetness
- Warm cinnamon notes
- Buttery cookie flavor
- Crisp texture
- Rich aroma
When crushed and incorporated into cake batter, they add incredible depth and flavor. Combined with creamy Biscoff spread, the result is a dessert that’s rich, comforting, and completely irresistible.
Ingredients You’ll Need
For the Vegan Biscoff Cake
- 250ml dairy-free milk
- 1 teaspoon apple cider vinegar
- 100g caster sugar
- 280g self-raising flour
- ½ teaspoon baking powder
- ½ teaspoon bicarbonate of soda
- 70ml sunflower oil
- 120g Lotus Biscoff cookies, crushed
For the Vegan Cream Cheese Frosting
- 100g dairy-free butter
- 30g dairy-free cream cheese
- 180g icing sugar
- 1 teaspoon vanilla extract
- 3 tablespoons smooth Biscoff spread
For Decoration
- Extra Biscoff spread
- Crushed Biscoff cookies
The Secret to a Perfect Vegan Sponge Cake
Many people worry that vegan cakes won’t be as soft or moist as traditional cakes. Fortunately, that’s not the case here.
The secret lies in creating vegan buttermilk.
By combining dairy-free milk with apple cider vinegar, you create an acidic mixture that reacts with the baking soda. This reaction helps the cake rise beautifully while creating a soft, fluffy texture.
The result is a sponge that’s light, tender, and almost impossible to distinguish from a traditional cake.
Step 1: Prepare Your Cake Tin
Begin by preheating your oven to 180°C fan.
Line an 8 x 8-inch square baking tin with greaseproof paper.
Allow the paper to hang slightly over the sides.
This overhang acts as handles, making it much easier to lift the cake out after baking.
A properly lined pan also prevents sticking and helps maintain clean edges.
Step 2: Make the Vegan Buttermilk
In a bowl, combine:
- Dairy-free milk
- Apple cider vinegar
Whisk thoroughly until fully combined.
Set aside for 10 minutes.
During this time, the mixture will slightly curdle.
This is completely normal and exactly what you want.
The vegan buttermilk helps create a wonderfully soft and fluffy cake texture.
Step 3: Mix the Dry Ingredients
In a large mixing bowl, sift together:
- Caster sugar
- Self-raising flour
- Baking powder
- Bicarbonate of soda
Mix thoroughly.
Sifting removes lumps and ensures even distribution of the raising agents.
This step contributes to an even rise and tender crumb.
Step 4: Combine Wet and Dry Ingredients
Add the sunflower oil to the vegan buttermilk.
Whisk until combined.
Pour the wet mixture into the dry ingredients.
Add the crushed Biscoff cookies.
Mix gently until just combined.
Avoid overmixing.
Overworked batter can lead to a dense cake instead of a light, fluffy sponge.
Step 5: Bake the Cake
Pour the batter into the prepared baking tin.
Use a spatula or the back of a spoon to level the surface.
Place the tin into the center of the oven.
Bake for 25 to 30 minutes.
To test for doneness, insert a skewer into the center.
If it comes out clean, the cake is ready.
The surface should also spring back lightly when touched.
If the cake begins browning too quickly, cover loosely with greaseproof paper.
Step 6: Cool Completely
Allow the cake to cool in the tin for approximately 10 minutes.
Carefully transfer it to a wire rack.
The sponge is delicate while warm, so handle it gently.
Allow the cake to cool completely before adding any filling or frosting.
Many bakers prefer to bake the cake one day ahead and frost the following day.
This actually makes decorating easier.
Step 7: Add the Hidden Biscoff Filling
One of the most exciting features of this cake is the hidden Biscoff pockets.
Transfer several tablespoons of Biscoff spread into a piping bag.
Snip off a small tip.
Using the handle of a wooden spoon or a chopstick, poke holes all over the cooled cake.
Pipe Biscoff spread directly into each hole.
These pockets create surprise bursts of cookie butter flavor throughout the cake.
Every slice becomes a delicious treasure hunt.
Step 8: Make the Vegan Biscoff Frosting
The frosting is just as important as the cake itself.
In a stand mixer fitted with a whisk attachment, combine:
- Dairy-free butter
- Dairy-free cream cheese
Whip on high speed for 5 to 8 minutes.
The mixture should become pale, fluffy, and creamy.
Gradually add the icing sugar.
Start on low speed to avoid a sugar cloud.
Once incorporated, increase the speed.
Add:
- Vanilla extract
- Biscoff spread
Continue beating for 3 to 4 minutes.
The finished frosting should be silky, smooth, and full of Biscoff flavor.
Step 9: Frost the Cake
Spoon the frosting onto the cake.
Use an offset spatula or the back of a spoon to spread evenly.
Create decorative swirls across the surface.
The swirls help hold the melted Biscoff drizzle and create a beautiful presentation.
Step 10: Add the Final Decoration
Warm a small amount of Biscoff spread until pourable.
Allow it to cool slightly.
Drizzle over the frosting.
Use a spoon or skewer to gently swirl it through the buttercream.
Finish with crushed Biscoff cookie crumbs.
This final touch adds both flavor and texture while making the cake look bakery-worthy.
Tips for the Best Vegan Biscoff Cake
Don’t Skip the Buttermilk
The vinegar reaction creates a lighter sponge.
Use Room Temperature Ingredients
This helps create a smoother batter and frosting.
Cool the Cake Completely
Warm cake will melt the frosting.
Avoid Overmixing
Mix only until ingredients are combined.
Use Quality Dairy-Free Butter
Block-style vegan butter produces the best frosting consistency.
Storage Instructions
This cake stores beautifully.
Refrigerator
Store in an airtight container in the fridge for up to 3 days.
Before Serving
Allow the cake to sit at room temperature for 15 to 20 minutes.
This softens the frosting and enhances the flavor.
Unfrosted Cake
The sponge can be stored at room temperature in a sealed container for up to 2 days.
Make-Ahead Tips
This recipe is ideal for planning ahead.
Day One
Bake the cake.
Day Two
Add the filling and frosting.
Party Day
Decorate with fresh cookie crumbs and extra drizzle.
The flavors actually improve after a few hours in the refrigerator.
Perfect Occasions for This Cake
This Vegan Biscoff Sheet Cake is perfect for:
- Birthdays
- Family gatherings
- Afternoon tea
- Potlucks
- Holiday celebrations
- Baby showers
- Office parties
- Weekend baking projects
Because it’s baked in a sheet pan, it’s easy to slice and serve to a crowd.
Frequently Asked Questions
Can I Use Another Plant Milk?
Yes.
Unsweetened soy milk works best, but oat milk and almond milk also work well.
Can I Freeze This Cake?
Yes.
Freeze the unfrosted cake for up to 2 months.
Thaw completely before decorating.
What Is the Best Vegan Butter?
Block-style vegan butters such as Naturli Vegan Block or Flora Plant Based Block provide the best results.
Can I Make It Gluten-Free?
You can substitute a gluten-free self-raising flour blend, though texture may vary slightly.
Why Is My Frosting Too Soft?
Add a little extra icing sugar.
If it’s too thick, add a small amount of dairy-free butter.
Final Thoughts
This Vegan Biscoff Sheet Cake is everything a cookie butter lover could dream of. Soft Biscoff sponge, hidden pockets of melted cookie butter, creamy vegan frosting, and crunchy Biscoff crumbs come together to create an unforgettable dessert experience.
The recipe is simple enough for beginner bakers yet impressive enough to serve at special celebrations. Every bite delivers the warm caramelized flavor that has made Lotus Biscoff famous around the world.
One slice is never enough—and once your family tastes it, they’ll be requesting this Vegan Biscoff Sheet Cake again and again.