Flourless Orange Pistachio Cake (Print version)

A moist Flourless Orange Pistachio Cake made with whole oranges, ground pistachios, almond flour, and a glossy citrus finish.

# Ingredients:

For the oranges

01 - 2 medium thin-skinned oranges, about 12 oz (340 g) total
02 - Water, for simmering

For the cake

03 - 1 cup (120 g) shelled unsalted pistachios, plus more for topping
04 - 1 1/2 cups (150 g) almond flour
05 - 5 large eggs, room temperature
06 - 1 cup (200 g) granulated sugar
07 - 1 1/2 teaspoons gluten-free baking powder
08 - 1 teaspoon vanilla extract
09 - 1/2 teaspoon ground cardamom
10 - 1/2 teaspoon fine salt

For finishing

11 - 2 tablespoons orange marmalade, warmed (optional)
12 - 2 tablespoons chopped pistachios
13 - Powdered sugar, for dusting (optional)

# Instructions:

01 - Place the whole oranges in a saucepan and cover with water. Simmer gently for 45-60 minutes, until very soft when pierced. Drain and cool until easy to handle.
02 - Cut the oranges open, remove any seeds, and puree the peel and flesh in a food processor until smooth. Measure about 1 cup of puree.
03 - Heat the oven to 350°F (175°C). Grease a 9-inch springform pan and line the bottom with parchment paper.
04 - Pulse the pistachios with 2 tablespoons of the sugar until finely ground. Stop before the nuts turn into paste.
05 - Beat the eggs and remaining sugar for 2-3 minutes, until slightly pale. Stir in the orange puree and vanilla, then fold in the ground pistachios, almond flour, baking powder, cardamom, and salt.
06 - Spread the batter in the prepared pan. Bake for 45-55 minutes, until the top is golden, the center is set, and a tester comes out with moist crumbs.
07 - Cool in the pan for 20 minutes, then release the ring and cool completely. Brush with warm marmalade, scatter with chopped pistachios, and dust lightly with powdered sugar if desired.

# Good to know:

01 - The cake slices best after it has cooled fully.
02 - Flavor improves after resting for several hours or overnight.
03 - Use certified gluten-free baking powder if serving gluten-free guests.

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