1. Preheat oven to 350 degrees. Put egg yolks, granulated sugar, zest, vanilla, and salt in the bowl of an electric mixer fitted with the whisk attachment. Beat on medium-high speed until pale and thickened, about 4 minutes. Fold in pecans.

2. Beat whites in a clean mixing bowl until stiff peaks form; fold into yolk mixture. Pour into a 10-inch springform pan.

3. Bake until golden brown, about 1 hour (if top browns too quickly, tent with foil). Let cool on a wire rack 30 minutes. Remove sides of pan. Let cool completely. Dust with confectioners' sugar. Serve with curd and berries; garnish with zest.