STRAWBERRY-RHUBARB TART

Steps:

• Heat oven to 350 degrees. Combine flour and salt in food processor. Pulse to combine. Add cold butter, and pulse until pebbly. Beat egg yolks with 1/3 cup ice water. Open processor, and sprinkle yolk mixture over flour mixture. Pulse 10 to 12 times or until mixture begins to form dough. If necessary add a few more drops of water, and pulse again.
• Gather dough together, and set aside a third of it. Form the rest into a ball. Flatten, roll on floured board and place in 10-inch fluted tart pan. Line with parchment or foil, and weight with pastry weights. Bake until pastry looks dry, about 10 minutes. Remove paper and weights, and bake until lightly browned, about 20 minutes longer. Remove from oven.
• Mix rhubarb, strawberries, brown sugar, cinnamon, tapioca and melted butter in a bowl. Spoon into tart pan. Roll out remaining dough, and cut into strips 1 inch wide. Crisscross over fruit, tucking in ends where they meet pastry. Beat egg white with 1 tablespoon water until frothy; brush on strips, and dust with sugar.
• Bake about 40 minutes, until top has browned and filling is bubbly. Serve with crème fraîche.