pastry base filled with jam and topped with a cake

Pastry Base Filled with Jam and Topped with Cake (Classic Jam Cake Slice)

This beautiful layered dessert features a buttery pastry crust, a generous layer of fruity jam, and a soft sponge cake baked right on top. The result is a delightful contrast of textures—crumbly, sweet, and fluffy all in one bite. It’s a traditional European-style bake often found in home kitchens and bakeries, similar in spirit to desserts like Victoria sponge or the famous Bakewell tart, though this version is simpler and perfect for everyday baking.

Whether served with tea, coffee, or as a sweet afternoon treat, this jam-topped cake slice is always a crowd-pleaser.

Why You’ll Love This Recipe

Three delicious layers in one dessert
Perfect balance of buttery, fruity, and fluffy
Easy to prepare with simple pantry ingredients
Great for making ahead
Customizable with your favorite jam

Ingredients

For the Pastry Base:

250 g (2 cups) all-purpose flour
125 g (½ cup) cold butter, cubed
80 g (⅓ cup) sugar
1 egg
1 teaspoon vanilla extract
1 teaspoon baking powder
Pinch of salt

For the Filling:

200–250 g (¾–1 cup) jam (strawberry, raspberry, apricot, or your favorite)

For the Cake Topping:

2 eggs
120 g (½ cup) sugar
120 ml (½ cup) milk
100 ml (⅓ cup + 1 tbsp) vegetable oil or melted butter
180 g (1½ cups) all-purpose flour
1½ teaspoons baking powder
1 teaspoon vanilla extract

Step-by-Step Instructions

1. Prepare the Pastry Base

Preheat your oven to 180°C (350°F). Line a rectangular baking pan (about 20×30 cm / 9×13 inch) with parchment paper.

In a bowl, mix flour, baking powder, sugar, and salt. Add the cold butter and rub it into the flour mixture until it resembles coarse crumbs.

Add the egg and vanilla extract. Mix until a soft dough forms. Do not overwork the dough.

Press the dough evenly into the bottom of the prepared pan, forming a smooth base. Prick lightly with a fork.

Bake for 10–12 minutes until lightly golden (this prevents a soggy base). Remove from the oven and let cool slightly.

2. Add the Jam Layer

Spread the jam evenly over the partially baked pastry base. Use the back of a spoon to create a smooth, even layer. Make sure the jam reaches the edges for full flavor in every bite.

Tip: If your jam is very thick, warm it slightly so it spreads more easily.

3. Prepare the Cake Batter

In a large bowl, beat eggs and sugar until pale and fluffy (about 3–4 minutes).

Add milk, oil (or melted butter), and vanilla extract. Mix until combined.

Sift together flour and baking powder, then gently fold into the wet mixture. Stir just until smooth—do not overmix.

4. Assemble and Bake

Carefully pour the cake batter over the jam layer. Spread gently with a spatula to avoid disturbing the jam underneath.

Bake for 30–35 minutes, or until a toothpick inserted into the cake layer comes out clean.

The top should be golden and slightly springy to the touch.

Allow the cake to cool completely before slicing.

Tips for Perfect Results

Pre-bake the crust. This keeps the pastry layer crisp and prevents sogginess.
Don’t overmix the cake batter. Overmixing can make the cake dense.
Use quality jam. High-fruit-content jam provides better flavor.
Let it cool fully before slicing. This helps the layers set beautifully.

Flavor Variations

Almond Version

Add ½ teaspoon almond extract to the cake batter and sprinkle sliced almonds on top before baking.

Chocolate Twist

Fold ½ cup chocolate chips into the cake batter for a richer version.

Lemon Jam Delight

Use lemon or orange marmalade for a bright citrus contrast.

Berry Lovers

Layer fresh berries over the jam before adding the cake batter.

Serving Suggestions

Dust with powdered sugar
Serve with whipped cream
Pair with vanilla ice cream
Enjoy with coffee or afternoon tea

For a more elegant presentation, cut into neat squares and serve on a cake stand.

Storage

Store in an airtight container at room temperature for up to 2 days or refrigerate for up to 5 days. The flavors deepen slightly after a day, making it even more delicious.

You can also freeze individual slices for up to 2 months. Simply thaw at room temperature before serving.

Why This Dessert Works

This layered cake succeeds because of its balance:

The pastry base provides structure and richness.
The jam adds moisture and fruity brightness.
The cake topping creates a soft, airy finish.

Each bite delivers contrast and harmony, making it ideal for both casual family gatherings and more festive occasions.