1. Can I make lemon pistachio cake with mascarpone frosting ahead of time?

Yes, you can! Bake the cake a day ahead, cool it completely, and store it tightly wrapped at room temperature. Prepare the mascarpone frosting on the day you plan to serve the cake. Once frosted, refrigerate the cake, then let it sit at room temperature for about 30 minutes before serving for the best texture.

2. What’s the best way to store leftovers?

Store leftover lemon pistachio cake with mascarpone frosting in an airtight container in the refrigerator for up to three days. The mascarpone frosting stays creamy when chilled and softens beautifully at room temperature. Avoid leaving it out for more than two hours, as the frosting contains dairy.

3. Can I use different nuts or flavor variations?

Absolutely! Almonds or hazelnuts make excellent substitutes for pistachios, offering a slightly different flavor profile. You can also experiment by adding a touch of cardamom, orange zest, or a hint of rose water for a Middle Eastern twist. The mascarpone frosting adapts well to flavor variations, maintaining its silky consistency and balanced sweetness.

Lemon Pistachio Cake with Mascarpone Frosting – Best Spring Dessert

Name: Lemon Pistachio Cake with Mascarpone Frosting
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: American
Ingredients: 3/4 cup shelled roasted pistachios, plus more for topping; Zest of 2 lemons; 1 1/2 cups cake flour; 1 teaspoon baking powder; 1/4 teaspoon baking soda; 1/2 cup (1 stick) unsalted butter, room temperature; 1 cup granulated sugar; 3/4 teaspoon kosher salt; 3 large eggs; 1/4 cup full-fat sour cream; 1 teaspoon vanilla extract; 1/3 cup whole milk; 6 ounces (3/4 cup) mascarpone cheese, room temperature; 3/4 cup powdered sugar; 1 tablespoon heavy whipping cream; 1 teaspoon finely grated lemon zest; 1 teaspoon fresh lemon juice; 1/8 teaspoon kosher salt

Description

This lemon pistachio cake with mascarpone frosting is a moist, zesty, and nutty dessert that perfectly combines bright lemon flavor with the earthy richness of pistachios. The mascarpone frosting adds a silky, lightly tangy finish that complements the soft crumb of the cake. Ideal for spring gatherings or elegant occasions.

Ingredients

Scale

3/4 cup shelled roasted pistachios, plus more for topping
Zest of 2 lemons
1 1/2 cups cake flour
1 teaspoon baking powder
1/4 teaspoon baking soda
1/2 cup (1 stick) unsalted butter, room temperature
1 cup granulated sugar
3/4 teaspoon kosher salt
3 large eggs
1/4 cup full-fat sour cream
1 teaspoon vanilla extract
1/3 cup whole milk
6 ounces (3/4 cup) mascarpone cheese, room temperature
3/4 cup powdered sugar
1 tablespoon heavy whipping cream
1 teaspoon finely grated lemon zest
1 teaspoon fresh lemon juice
1/8 teaspoon kosher salt

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Instructions

Preheat the oven to 350°F (175°C). Butter an 8×8-inch baking pan, line it with parchment paper, and butter the paper.
In a food processor, pulse pistachios and lemon zest until finely ground but not into a paste.
In a bowl, whisk the ground pistachios with cake flour, baking powder, and baking soda. Set aside.
In another bowl, whisk together sour cream, milk, and vanilla extract. Set aside.
In a stand mixer, cream the butter, sugar, and salt on medium speed until light and fluffy (about 3 minutes).
Add the eggs one at a time, mixing well after each addition.
Alternate adding the dry and wet ingredients, beginning and ending with the dry, mixing on low speed until just combined.
Pour the batter into the prepared pan and smooth the top.
Bake for 35–40 minutes or until a toothpick inserted in the center comes out clean.
Cool the cake in the pan for 10 minutes, then remove and cool completely on a wire rack.
In a medium bowl, combine mascarpone, powdered sugar, cream, lemon zest, lemon juice, and salt. Beat with a hand mixer until smooth but do not overmix.
Spread the mascarpone frosting evenly over the cooled cake and top with chopped pistachios before serving.

Notes

Do not overmix the mascarpone frosting to prevent curdling.
Salted pistachios can be used; they enhance flavor depth.
Refrigerate the frosted cake and bring it to room temperature before serving.
The unfrosted cake can be frozen for up to one month.

Prep Time: 20 minutes
Cook Time: 40 minutes
Category: Dessert
Method: Baking
Cuisine: American

Nutrition

Serving Size: 1/16 of cake
Calories: 272
Sugar: 19g
Sodium: 266mg
Fat: 15g
Saturated Fat: 7.8g
Unsaturated Fat: 6.5g
Trans Fat: 0.1g
Carbohydrates: 30g
Fiber: 0.8g
Protein: 4.3g
Cholesterol: 68mg