Torta Bertolina: Authentic Italian Grape Cake Recipe

Italy is celebrated for its culinary traditions, and Torta Bertolina — often called the Italian Grape Cake — is a wonderful example. This rustic, moist cake pairs fresh grapes with simple pantry ingredients, olive oil and citrus zest to produce a dessert that is both elegant and comforting. Below you will find background, ingredients, detailed instructions, practical tips and storage guidance to make a successful Torta Bertolina at home.

Why Torta Bertolina

Torta Bertolina celebrates the humble grape — a central fruit in Italian food culture and winemaking. Its charm comes from the simplicity of the batter and the natural sweetness and juiciness of fresh grapes. The cake’s texture is tender and moist, thanks to a combination of butter and olive oil, while citrus zest brightens the overall flavor. It works equally well for an afternoon coffee, a family gathering or as the finale to a relaxed dinner.

This particular approach draws on the classic combination of olive oil, citrus and wine found across Italian bakeware, and adapts a straightforward pound-cake method to highlight seasonal grapes. The recipe below has been streamlined and clarified so you can reproduce consistent results even if you’re new to baking with olive oil.

Key Ingredients

The full, printable ingredient list and measurements are provided in the recipe card below. Here’s a concise overview of the ingredients that make this cake distinctive and suggestions for reasonable substitutions.

• All-purpose flour (unbleached) — unbleached flour gives a better crumb and avoids any off-flavors.
• Unsalted butter and olive oil — butter contributes flavor while olive oil keeps the cake moist and gives a subtle, traditional character. If using high-quality extra virgin olive oil, temper it briefly (a few seconds in warm water) to reduce any sharp bitterness and then let it cool to room temperature.
• Orange and lemon zest — these add a bright, aromatic lift and pair beautifully with both olive oil and grapes. Do not skip the zest.
• Large eggs at room temperature — they help with structure and richness.
• Sour cream at room temperature — adds tang and moisture. You can substitute a mild white wine (including a sparkling wine) in some versions, but sour cream gives a reliably tender crumb.
• Red grapes — use fresh, halved seedless grapes. Concord or other sweet varieties work when available; otherwise, regular red seedless grapes halved lengthwise are ideal. Avoid frozen grapes because they release excessive moisture and can alter texture.

How to Make Italian Grape Cake

Follow these step-by-step directions for an even, flavorful cake. Read through all steps before baking so you understand the process and timing.

1. Preheat your oven to 350°F (175°C). Prepare an angel food pan with a removable bottom or two 8-inch round pans lined with parchment; grease as needed.
2. Sift together the flour, baking powder and salt into a medium bowl and set aside.
3. In a stand mixer fitted with the paddle attachment (or using a large bowl and electric mixer), beat the butter, olive oil, sugar, vanilla and citrus zests on medium-high until light and airy, about 3–4 minutes.
4. Add the eggs one at a time, beating until each is fully incorporated. Scrape the sides and bottom of the bowl to ensure even mixing.
5. Reduce mixer speed to low. Add the dry ingredients in three portions, alternating with the sour cream, beginning and ending with the flour mixture. Mix only until combined; overmixing can toughen the cake.
6. Pour half of the batter into the prepared pan(s). Arrange half of the halved grapes over the batter in an even layer. Pour the remaining batter on top and arrange the remaining grapes, pressing them lightly into the surface. Sprinkle the top with turbinado or coarse sugar for a crunchy finish.
7. Bake at 350°F for approximately 50–55 minutes, or until a wooden skewer inserted into the center comes out with a few moist crumbs but not wet batter. Oven times vary; start checking at 45 minutes.
8. Allow the cake to cool in the pan for 10–15 minutes, then remove to a rack to cool completely. Dust lightly with powdered sugar before serving if desired.

Tips for Success

• This cake is essentially a pound-cake style batter—mix it with a stand mixer for convenience or use a handheld electric mixer in a large bowl.
• An angel food pan with a removable bottom works well for an open, rustic look. Two 8-inch rounds lined with parchment also bake evenly.
• Experiment with grape varieties for different flavor profiles: sweet Concords give jammy pockets, while crisp champagne or thomcord grapes add brightness. Mixing red and green grapes adds visual contrast.
• Halve grapes lengthwise; whole larger grapes can sink to the bottom during baking.
• For serving, a dusting of powdered sugar is attractive. For a richer presentation, offer whipped cream, crème fraîche or a scoop of vanilla gelato.

Storing and Freezing

Store baked and cooled Torta Bertolina wrapped tightly in plastic wrap or in an airtight container at room temperature for up to three days. To freeze, wrap the cake well in plastic wrap and place it in a freezer-safe bag; it will keep up to three months. Thaw overnight in the refrigerator or at room temperature until fully defrosted before serving.

Recipe Card — Ingredients

• 3 cups (360 g) unbleached all-purpose flour
• 3 teaspoons baking powder
• 3/4 teaspoon salt
• 1 3/4 cups (350 g) sugar
• 3/4 cup (170 g / 6 oz) unsalted butter, room temperature
• 1/3 cup (80 ml) extra virgin olive oil
• 2 teaspoons freshly grated lemon zest
• 2 teaspoons freshly grated orange zest
• 1 teaspoon vanilla extract
• 4 large eggs, room temperature
• 1 cup (240 ml) sour cream, room temperature
• 1/2 cup (100 g) seedless red grapes, washed and halved lengthwise
• 1/3 cup (70 g) turbinado or coarse sugar for sprinkling
• Additional 100 g seedless red grapes for topping, halved

Recipe Card — Instructions (Condensed)

1. Preheat oven to 350°F and prepare pan(s).
2. Sift flour, baking powder and salt; set aside.
3. Cream butter, olive oil, sugar, vanilla and zests until light.
4. Add eggs one at a time, fully incorporating each.
5. Fold dry ingredients and sour cream into batter, alternating and starting/ending with flour.
6. Layer half the batter, half the grapes, then remaining batter and grapes; sprinkle sugar on top.
7. Bake 50–55 minutes or until a skewer comes out with a few moist crumbs.
8. Cool, remove from pan and serve at room temperature.