For tart shell:
2 tablespoons almonds with skins, toasted and cooled
3/4 cup all-purpose flour
1/4 cup confectioners sugar
Pinch of fine sea salt
1/2 stick cold unsalted butter, cut into 1/2-inch cubes
1 large egg yolk
3 1/2 tablespoons fruity olive oil (preferably French)
For lemon curd:
3 large lemons
3/4 cup granulated sugar
2 teaspoons cornstarch
2 whole large eggs plus 2 large yolks
1/2 stick unsalted butter, cut into 1/2-inch cubes
2 tablespoons fruity olive oil (preferably French)
Make tart shell:
Preheat oven to 425°F with rack in middle.
Pulse almonds with flour, sugar, and sea salt to a fine powder in a food processor. Add butter and pulse until mixture resembles coarse meal with some small (roughly pea-size) butter lumps.
Add yolk and oil and pulse until just incorporated and a very soft dough has formed.
Spread dough evenly over bottom and up side of a 9″ tart pan with offset spatula. Chill until firm, about 30 minutes.
Bake shell until golden brown all over, about 13 minutes. Transfer to a rack to cool completely, about 30 minutes.
Grate enough zest from lemons to measure 1 tablespoon, then squeeze 3/4 cup juice from lemons.
Whisk together lemon zest and juice, sugar, cornstarch, whole eggs, and yolks in a medium saucepan and bring to a boil over medium heat, whisking constantly. Boil, whisking, 2 minutes.
Remove from heat and whisk in butter and oil until smooth.
Pour lemon curd into cooled shell and chill until set, at least 2 hours.
Gourmet, May 2008