Italian Pistachio Cake with Roasted Plum Frosting Recipe

User Reviews

4.3

9 reviews
Good
  • Prep Time

    45 mins

  • Cook Time

    45 mins

  • Decorating Time

    10 mins

  • Total Time

    1 hr 35 mins

  • Servings

    8 slices or 1 (8-inch two layer) cake

  • Calories

    1262 kcal

  • Course

    Dessert, Cake

  • Cuisine

    Italian, American

Italian Pistachio Cake with Roasted Plum Frosting Recipe

This Italian Pistachio Cake with Roasted Plum Frosting was inspired by a recent trip to Italy. This dreamy cake is filled with a homemade pistachio paste, topped with a tangy Swiss Meringue plum frosting and even more crushed nuts! The frosting is naturally pink and the whole cake is pretty simple to put together. Serve it with Ribollita for the perfect cozy meal!

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Ingredients

Servings

Pistachio Paste:

  • 1 1/3 cup shelled pistachios
  • 1/3 cup granulated sugar
  • 2 tablespoons water
  • 2 tablespoons melted coconut oil
  • 1/2 cup almond meal

Plum Italian Meringue Frosting:

  • 2 black plums such as Santa Rosa Plums
  • 1/4 cup white granulated sugar
  • 1 teaspoon balsamic vinegar
  • 3 tablespoons water
  • Pinch kosher salt
  • 1 cup white granulated sugar
  • 1/2 cup egg whites from 4 large eggs
  • 1 1/2 cups about 3 sticks unsalted butter at room temperature

Pistachio Cake:

  • 2 1/2 cups cake flour sifted
  • 1 tablespoon baking powder
  • 1 teaspoon kosher salt
  • 1 cup unsalted butter room temperature
  • 1 1/2 cups white granulated sugar
  • 1/2 teaspoon Lemon or orange zest from about 1/2 orange
  • 4 large eggs
  • 1 1/2 teaspoons pure vanilla extract
  • 1 cup Greek yogurt
  • 1/2 cup homemade or store-bought pistachio paste

For garnish:

  • 3/4 cup chopped pistachio nuts
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Instructions

  1. To Make the Pistachio Paste:
  2. To a high-powered blender or food processor, add the pistachios. Pulse until roughly ground. Transfer to a small bowl. In a small saucepan, combine the water and sugar. Cook over high heat until it reaches 220 degrees and is bubbling. Pour over the pistachios and mix immediately.
  3. Transfer to the blender or food processor and pulse until finely ground. While the machine is running, pour in the oil. Blend until it resembles a soft peanut butter, about 2 minutes. Transfer to a bowl, mix in the almond meal. At this point it should go from soupy to firm. Measure out 1/2 cup of the paste and store the rest in the fridge. Set aside.
  4. To Make the Frosting:
  5. Preheat your oven to 400 degrees. In a small baking dish, toss together the sliced plums, sugar, balsamic vinegar, salt and water. Roast for 15 minutes, or until the plums are super juicy and a syrup has formed. Set aside to cool slightly, about 5 minutes. Add the plums and its juices to a blender and pulse until completely pureed.
  6. Pour through a strainer, into a small bowl. You should end up with about 1/3 of a cup puree. In the bowl of a stand-up mixer with the whisk attachment, add the egg whites and sugar; beat just until combined. Add a few inches of water to a saucepan and bring to a simmer. Place the stand-up mixer bowl atop the saucepan, creating a double-boiler.
  7. Heat until the mixture reads 160 degrees on a thermometer and/or until it's very hot to the touch. Transfer the bowl back to the stand-up mixer and beat, on high, for 8 to 10 minutes until medium to stiff peaks form. The sides of the bowl should be cool to the touch. Remove the whisk attachment and in place of it, add the paddle attachment.
  8. While the mixer is on low, add the butter, a tablespoon at a time, until it's light and smooth and fluffy. Lastly, add the 1/3 cup of plum puree and mix until combined. If the frosting is soupy (mine was because it was really hot), add the bowl to the fridge to chill for 5 to 10 minutes. This will work like a charm. Set aside until you're ready to frost the cake.
  9. To Make the Italian Pistachio Cake Layers:
  10. Preheat oven to 350 degrees F. Butter and flour two 8x3-inch cake pans. Line the bottoms with a round of parchment (this isn't totally necessary but I always do this because my biggest fear is cake sticking to the bottom of pans). Set aside.
  11. In a medium bowl, whisk together the flour, baking powder and salt. In the bowl of a stand-up mixer add the butter and sugar; cream together until light and fluffy, about 2 minutes. Add the zest and then crack in one egg at a time, adding the next egg only when the one before it has combined.
  12. Almost lastly, add in the vanilla extract. Turn the mixer down to low speed and add the yogurt and flour mixture in a few batches, alternating between the two. Lastly, add the pistachio paste and mix until properly combined.
  13. Divide the cake batter amongst pans, smoothing out the top with a spatula (the batter will be a little thick so it'll need some help smoothing out). Transfer to the oven and bake for 40 to 45 minutes, or until a a skewer inserted into the center comes out clean. Cool the cakes in their pan for 10 minutes before removing them to cool completely on a wire rack.
  14. To Assemble the Cake:
  15. Place the first layer of cake on a cake board or a cake stand. Add about 1/4 cup of frosting the top of the cake layer and smooth it out, pushing it out to the sides. Add the second layer on top and then add a second 1/4 cup to the top of that. (These measurements can be eyeballed.)
  16. Smooth out the top and add a nice thin layer all the way around the sides of the cake. Transfer to the freezer to chill for about 5 to 7 minutes. This is the crumb coat. Add a second even layer on the outside. Transfer to the cake to a baking sheet and press the chopped pistachios all around the sides of the cake. Slice and serve!
Equipments used:

Notes

  • Equipment:
  • 8-inch Cake Pans | KitchenAid Stand-Up Mixer | Silicon Spatula | Glass Nesting Bowl Set
  • Make plum puree, cake and pistachio paste ahead of time for easy assembly! The plum puree can be stored covered in the refrigerator for 1 – 2 days. Make the cake the day before then just wrap with a couple layers of plastic wrap and store on the counter. And the pistachio paste can be made 2-3 days ahead and stored in the refrigerator.
  • Mix the zest with the butter to help the flavor travel further in the cake.
  • Roast your plums! This helps soften them, pull out more juices, and makes them just a little bit sweeter.
  • Different cake pan options. If you don’t have two 8×2-inch cake pans you can use two 9-inch cake pans OR you can use three 8×2-inch cake pans.
  • The plum frosting’s base is borrowed from the book Layered (one of my favorites!).

Nutrition Information

Show Details
Serving 12g Calories 1262kcal (63%) Carbohydrates 119g (40%) Protein 20g (40%) Fat 82g (126%) Saturated Fat 42g (210%) Polyunsaturated Fat 7g Monounsaturated Fat 24g Trans Fat 2g Cholesterol 236mg (79%) Sodium 368mg (15%) Potassium 656mg (19%) Fiber 5g (20%) Sugar 83g (166%) Vitamin A 2083IU (42%) Vitamin C 4mg (4%) Calcium 180mg (18%) Iron 3mg (17%)

Nutrition Facts

Serving: 8slices or 1 (8-inch two layer) cake

Amount Per Serving

Calories 1262 kcal

% Daily Value*

Serving 12g
Calories 1262kcal 63%
Carbohydrates 119g 40%
Protein 20g 40%
Fat 82g 126%
Saturated Fat 42g 210%
Polyunsaturated Fat 7g 41%
Monounsaturated Fat 24g 120%
Trans Fat 2g 100%
Cholesterol 236mg 79%
Sodium 368mg 15%
Potassium 656mg 14%
Fiber 5g 20%
Sugar 83g 166%
Vitamin A 2083IU 42%
Vitamin C 4mg 4%
Calcium 180mg 18%
Iron 3mg 17%

* Percent Daily Values are based on a 2,000 calorie diet.

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4.3

9 reviews
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