Vanilla Chocolate Crumb Cake
This vanilla chocolate crumb cake is a layered no-bake dessert made with a Nutella biscuit base, silky vanilla cream, chocolate cream, and a crunchy walnut topping. It has the look of a bakery-style slice cake, but it comes together without baking the cake layers.
A great chilled dessert depends on contrast: a firm base, a smooth cream, and a topping that brings texture back to every bite.
What I love most about this cake is how the layers work together. The biscuit base is rich and slightly chewy from the Nutella, coconut, butter, and sour cream, while the vanilla and chocolate creams create a smooth, custard-like center. The crumbled walnuts on top add the perfect crunchy finish.
Why You’ll Love This Vanilla Chocolate Crumb Cake
This cake is creamy, rich, and full of classic vanilla-chocolate flavor.
The biscuit base sets in the fridge, so there is no need to bake it. The two cream layers make the cake look elegant when sliced, while the walnut crumb topping gives it a homemade, textured finish.
It is a great dessert for parties, holidays, or any time you want something impressive that can be made ahead.
The Ingredients That Make This Cake So Good
- Ground biscuits: Create the firm, crumbly base of the cake.
- Coconut flakes: Add texture and a subtle coconut flavor to the biscuit layer.
- Nutella: Gives the base a rich chocolate-hazelnut taste.
- Melted butter: Helps bind the biscuit mixture together.
- Sour cream: Softens the base and keeps it from becoming too dry.
- Milk: Forms the base of the vanilla and chocolate creams.
- Egg yolks: Add richness and help create a smooth custard texture.
- Cornstarch: Thickens the cream so the layers set properly.
- Butter: Makes the cream silkier and richer.
- Chocolate: Turns half of the vanilla cream into a deep chocolate layer.
- Walnuts: Add crunch and a nutty contrast on top.
Helpful Tips Before You Start
- Crush the biscuits finely so the base holds together well.
- Press the biscuit base firmly into the tray, but do not make it overly compact.
- Chill the base for the full 30 minutes before adding the cream.
- Whisk the cream constantly while cooking to avoid lumps.
- Divide the cream while it is still warm so the chocolate melts smoothly into one half.
- Let the finished cake chill until the layers are firm before slicing.
- Use a sharp knife and wipe it clean between cuts for neat squares.
The Best Way to Store Vanilla Chocolate Crumb Cake
Store the cake covered in the refrigerator for up to 4 days.
Because it contains milk, egg yolks, butter, and cream layers, it should stay chilled until serving.
For the best texture, serve it cold, straight from the fridge, or let it sit at room temperature for about 10 minutes if you prefer a softer cream.
Vanilla Chocolate Crumb Cake Questions Answered
Can I make this cake ahead of time?
Yes. This cake is perfect for making ahead because the layers need time to set in the refrigerator.
Can I replace Nutella?
Yes. You can use another chocolate-hazelnut spread or a plain chocolate spread, but the flavor of the base will change slightly.
Can I use other nuts instead of walnuts?
Yes. Hazelnuts, almonds, or pecans would also work well on top.
Why does the base need to chill first?
Chilling helps the biscuit layer firm up, making it easier to spread the cream layers on top without disturbing the base.
