No-Bake Icebox Cookie Custard Cake with Mascarpone

Cookie Custard Cake is a no-bake, layered dessert that combines simple pantry staples into something truly irresistible. Featuring layers of soft cookies and rich homemade custard, this cake is creamy, comforting, and perfect for both special occasions and everyday treats. It's an ideal make-ahead dessert for busy families or anyone craving an easy yet indulgent sweet.

What Is Cookie Custard Cake?

This dessert is inspired by traditional refrigerator cakes and tiramisu-style layer cakes. It features a stovetop-cooked vanilla custard thickened with cornstarch, layered between cookies (like digestive biscuits or tea cookies), and chilled until set. It’s a nostalgic treat reminiscent of childhood favorites across Europe and Latin America, combining the ease of no-bake prep with a rich, creamy texture.

Why Everyone Will Love This Recipe

• No oven needed: Perfect for warm days or when you're short on time.
• Velvety custard: Creamy, smooth, and enhanced with mascarpone.
• Family-friendly: Both kids and adults will love it.
• Customizable: Switch up the cookies or add fruit layers for variety.

Pro Tips for the Best Cookie Custard Cake

1. Choose flat cookies like Maria, Petit Beurre, or digestive biscuits for easy layering.
2. Don’t overcook the custard—stir constantly until just thickened.
3. Let it chill fully (at least 4 hours) for clean slices and the best texture.
4. Add a flavor twist: Fold in lemon zest or swap vanilla with almond extract.

Frequently Asked Questions

Can I Use Graham Crackers or Ladyfingers?

Yes! Graham crackers work wonderfully, and ladyfingers make a more sponge-like layer similar to tiramisu.

Is Mascarpone Necessary?

While mascarpone adds a luscious texture, you can substitute it with cream cheese or whipped cream for a lighter touch.

How Do I Know the Custard Is Thick Enough?

It should coat the back of a spoon and leave a clear line when you run your finger through it.

Can I Add Chocolate?

Absolutely! Drizzle melted chocolate between layers or mix cocoa into part of the custard for a twist.

How Long Does It Need to Chill?

Chill for at least 4 hours—overnight is even better for firm texture and flavor development.

How to Freeze

Freeze individual slices or the whole cake (without powdered sugar) wrapped tightly in plastic and foil. Store for up to 1 month. Thaw in the fridge overnight before serving.

How to Store

Cover the cake tightly with plastic wrap or store in an airtight container in the fridge. It keeps well for up to 4 days. Serve chilled straight from the refrigerator.

How To Make Cookie Custard Cake

Step 1

Step 1

Prepare the custard: In a saucepan, whisk together the eggs, sugar, cornstarch, milk, and vanilla extract.

Prepare the custard: In a saucepan, whisk together the eggs, sugar, cornstarch, milk, and vanilla extract.

Cook over medium heat, stirring constantly, until the mixture thickens into a smooth custard.

Remove from heat and stir in the mascarpone until fully incorporated. Let cool slightly.

Step 2

Step 2

Cook over medium heat, stirring constantly, until the mixture thickens into a smooth custard.

Assemble the cake: In a mold or deep dish, arrange a layer of cookies. Spoon a layer of custard over them, smoothing it out. Repeat the layers, ending with cookies on top.

Chill for 4–6 hours until set.

Step 3

Step 3

Remove from heat and stir in the mascarpone until fully incorporated. Let cool slightly.

Dust with powdered sugar before serving.