STRAWBERRIES-AND-CREAM TART

Steps:

• Make the crust: Whisk the vegetable oil, egg yolk, milk and vinegar in a bowl. Pulse the flour, baking powder, sugar and salt in a food processor to combine; add the butter and pulse until the mixture looks like coarse meal. Add the milk mixture and pulse once or twice, just to moisten the flour.
• Transfer the dough to a 9-inch-round tart pan with a removable bottom and pat onto the bottom and up the sides. Cover with plastic wrap and refrigerate until firm, at least 30 minutes. Trim the edges, if necessary.
• Preheat the oven to 350 degrees F. Pierce the dough all over with a fork. Line with foil and fill with pie weights or dried beans. Place the pan on a baking sheet and bake 15 minutes. Remove the foil and weights; continue to bake until golden, 10 to 15 more minutes. Beat the whole egg with 1 teaspoon water, then lightly brush over the crust and bake 5 more minutes. Cool completely on a rack.
• Meanwhile, make the filling: Sprinkle the gelatin over 1 tablespoon cold water in a bowl and let soften 5 minutes. Put the granulated sugar and vanilla seeds in a saucepan and rub the seeds into the sugar with your fingers. Add 1 cup cream and whisk over medium heat to dissolve the sugar. When the mixture comes to a boil, remove from the heat and whisk in the gelatin mixture. Transfer to a bowl, then set in a larger bowl of ice water and stir with a rubber spatula until the mixture begins to thicken. Add the remaining 1/4 cup cream and stir until thick, about 2 minutes. Pour into the tart shell and refrigerate until set, about 1 hour.
• Before serving, top the tart with the strawberries and confectioners' sugar.