Ingredients

1cupraw unsalted pistachios,shelled

1¾cupsall purpose flour

¾cupconfectioners’ sugar

1tbspconfectioners’ sugar

1½tspcoarse salt

1tbsplime zest,finely grated

½cupcold unsalted butter

1large egg yolk

1large egg

1cupwhole milk ricotta cheese

2cupssugar

20large egg yolks

2large eggs

6tbsplime zest,finely grated

2cupsfresh lime juice

1cupunsalted butter

1¾cupsmascarpone cheese

Preparation

Whisk together nuts, flour, sugar, salt, and lime zest in a large bowl. Using fingertips, work in butter until the largest pieces are the size of peas; make a well in center.

Whisk yolk and egg in a small bowl, and pour into well. Gradually draw flour mixture into center, kneading until combined. Shape dough into a disk. Wrap in plastic, and refrigerate overnight.

Preheat oven to 325 degrees F. Let dough come to room temperature; roll out on a lightly floured surface to ¼-inch thick. Fit dough into a 10×3-inch springform pan, pressing and patching so that dough reaches 2-inches up sides of pan.

Line with parchment; fill with pie weights or dried beans. Chill in the freezer for 15 minutes.

Bake crust for 30 minutes. Remove pie weights and parchment. Bake for 15 to 18 minutes until edge of crust is golden brown and inside is pale golden brown. Let cool slightly on a wire rack.

Remove sides from pan; and transfer crust to rack to cool completely.

Place ricotta in a sieve lined with cheesecloth, and set over a bowl. Cover, and refrigerate overnight.

Prepare an ice-water bath; set aside. Whisk sugar, yolks, and eggs in a large heatproof bowl. Whisk in lime zest and juice. Set bowl over a pan of simmering water. Cook, whisking occasionally, for about 30 minutes until thick.

Remove from heat. Add butter, a few pieces at a time, whisking until smooth after each addition. Pour through a fine sieve into a bowl set in ice-water bath. Place plastic wrap directly on surface of lime curd. Let cool. Refrigerate overnight.

Spread 2½ cups of lime curd over crust. Put ricotta and mascarpone into the bowl of an electric mixer fitted with the whisk attachment. Beat on high speed for about 5 minutes until thick. Reduce speed to low.

Beat in remaining lime curd. Raise speed to high, and beat for 3 minutes. Pour over lime curd in crust, spreading evenly with an offset spatula; gently shake to remove any air bubbles. Refrigerate, uncovered, overnight.

Garnish with zest before serving.

Serve and enjoy.