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Lemon Pistachio Cake with Mascarpone Frosting Recipe

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4 from 13 reviews

This Lemon Pistachio Cake is a moist, flavorful dessert combining the zesty brightness of fresh lemons with the rich, nutty crunch of finely ground pistachios. Made with olive oil and gluten free flour for a tender crumb, it’s topped with a luscious mascarpone whipped cream frosting and garnished with crushed pistachios and lemon slices, perfect for a light yet indulgent treat.

Ingredients

Cake

  • 1 cup cane sugar (or granulated sugar) (200g)
  • 2 tbsp lemon zest (14g, from about 23 lemons)
  • 3 large eggs
  • ¾ cup extra virgin olive oil (150ml)
  • ½ cup milk of choice (115ml, preferably whole milk)
  • ¼ cup fresh lemon juice (56ml, from about 12 lemons)
  • 1 tsp vanilla extract
  • 1.5 cups gluten free 1-to-1 flour (or normal all-purpose flour) (186g)
  • 1 cup finely ground pistachios (116g)
  • 1 tsp baking powder
  • ¼ tsp baking soda
  • ½ tsp kosher salt

Mascarpone Whipped Cream Frosting

  • 4 oz mascarpone cheese
  • ½ cup powdered sugar (62g)
  • ¾ cup heavy cream
  • Pinch of kosher salt
  • Splash of vanilla extract
  • Extra crushed pistachios and lemon slices for garnish

Instructions

  1. Preheat and prepare the pan: Preheat your oven to 350°F (175°C). Grease the bottom and sides of a cake pan, then place a circle of parchment paper at the bottom and grease or spray again to ensure easy release.
  2. Infuse sugar with lemon zest: In a large bowl, use your hands to massage the lemon zest into the cane sugar for several minutes. This helps release the lemon oils and intensifies the flavor throughout the cake.
  3. Combine wet ingredients: Add the eggs, extra virgin olive oil, milk, fresh lemon juice, and vanilla extract to the lemon-scented sugar. Whisk everything thoroughly until the mixture is smooth and well combined.
  4. Mix dry ingredients into batter: Incorporate the gluten free flour, finely ground pistachios, baking powder, baking soda, and kosher salt to the wet ingredients. Stir gently with a spatula until just combined—avoid overmixing to keep the cake tender.
  5. Bake the cake: Pour the batter into the prepared pan and place it in the preheated oven. Bake for about 35-40 minutes until a toothpick inserted into the center comes out clean. Remove from oven and allow the cake to cool completely, about 2 hours.
  6. Prepare mascarpone frosting: In a large bowl or stand mixer, beat the mascarpone cheese with powdered sugar until smooth. Then add heavy cream, a pinch of kosher salt, and a splash of vanilla extract. Continue to beat until stiff peaks form, creating a rich whipped cream frosting.
  7. Frost and garnish the cake: Once the cake is fully cooled, evenly spread the mascarpone whipped cream frosting over the top. Sprinkle with extra crushed pistachios and adorn with lemon slices for a fresh, elegant finish. Serve and enjoy!

Notes

  • For best flavor, use fresh lemon zest and juice from ripe lemons.
  • Finely grinding the pistachios prevents the cake from becoming too dense and ensures they impart a subtle, nutty flavor.
  • If gluten free is not required, all-purpose flour can be used as a substitute.
  • Letting the cake cool completely before frosting prevents the mascarpone frosting from melting.
  • The frosting can be made a few hours ahead and refrigerated; bring to room temperature before spreading.