Spanish Grandmother Cake (Tarta de la Abuela) – Easy No-Bake Chocolate Biscuit Cake

Tarta de la Abuela, also known as Spanish Grandmother Cake, is a classic no-bake dessert made with layers of Maria biscuits, creamy custard, and rich chocolate ganache. This nostalgic treat is simple, affordable, and incredibly delicious — making it one of Spain’s most beloved homemade desserts.

If you're looking for an easy no bake chocolate biscuit cake, this traditional recipe is a must-try.

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⭐ Why You’ll Love This Spanish Grandmother Cake

• 🍫 No oven required

• 🍪 Simple pantry ingredients

• 🥄 Creamy custard and chocolate layers

• ⏱️ Easy to prepare ahead of time

• 👨‍👩‍👧‍👦 Perfect for family gatherings

This custard chocolate layered cake is ideal for birthdays, celebrations, or whenever you want a comforting homemade dessert.

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🛒 Ingredients You’ll Need

• 2 packs Maria biscuits (or tea biscuits)

• 2 cups (500ml) milk (for dipping biscuits)

• 2 cups prepared vanilla custard (homemade or store-bought)

For the Chocolate Layer:

• 1 cup (200g) dark chocolate

• ½ cup (120ml) heavy cream

• 1 tablespoon butter

Optional: chocolate sprinkles or grated chocolate for topping.

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👩‍🍳 How to Make Tarta de la Abuela

1️⃣ Prepare the Custard

If making homemade custard, allow it to cool slightly before assembling the cake.

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2️⃣ Dip the Biscuits

Quickly dip each biscuit into milk (do not soak too long). Arrange a layer of biscuits in a rectangular dish.

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3️⃣ Layer the Cake

Spread a layer of custard over the biscuits. Repeat the process, alternating biscuits and custard until you finish the ingredients. End with a biscuit layer on top.

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4️⃣ Make the Chocolate Ganache

Heat heavy cream until warm (not boiling). Pour over chopped dark chocolate and stir until smooth. Add butter and mix until glossy.

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5️⃣ Chill & Set

Pour the chocolate ganache over the final biscuit layer. Refrigerate for at least 4 hours (preferably overnight) to set completely.

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6️⃣ Serve

Slice and serve chilled for clean layers and the best texture.

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🍽️ Tips for the Best No-Bake Chocolate Biscuit Cake

• Don’t oversoak the biscuits to prevent sogginess.

• Let the cake chill overnight for perfect slicing.

• Use high-quality chocolate for richer flavor.

• Add a splash of coffee or liqueur to the milk for extra depth.