Crostata alla Ricotta and Chocolate Chips

Directions

1. Pasta Frolla: In the bowl of a food processor, add the flour and sugar and process a few times to mix together. Next add the butter and pulse a few times until the mixture looks like wet sand. Add the egg and yolk and process a few seconds more until the dough forms (this should be about 5-7 more pulses). Be sure to not overprocess the dough.
2. Dump the dough from the food processor bowl onto a lightly floured counter. Form the dough into a disk and chill in the refrigerator for about an hour.
3. Preheat oven to 375°F with a foil-lined large baking sheet on middle rack.
4. When dough is nicely chilled, remove from the refrigerator. Roll out the dough between 2 sheets of plastic wrap into a 13-inch round about 1/8 thick.
5. Spray an 11-inch fluted tart pan with removable bottom with baking spray. Gently wrap the dough over the rolling pin and place it over the tart pan; release the rolling pin and let the dough fall into the tart pan.
6. Press the sides of the dough about 1/2 inch up the side of the tart pan. The rim of the tart should be lined with a slightly thicker layer of pastry than the bottom (about 1/4-inch thick). Cut off the extra dough from the sides and keep these excess pieces to make the lattice topping.
7. Place this tart pan in the refrigerator for about 30 minutes (or even longer if necessary) to chill.
8. Roll out the remaining piece of dough to 1/8-inch thickness. Cut out lattice strips to layer on top of the ricotta mixture. Place the lattice strips cut-outs on a rimmed baking sheet in the refrigerator until you are ready to layer them on top of the crostata mixture.
9. Fold the egg whites, espresso, lemon zest, and vanilla into the ricotta mixture.
10. Fold in the chocolate chips
11. Pour the filling gently into the crostata. Flatten it out with a spoon or a spatula. Layer the latice strips in a criss-cross design. Set the crostata in the oven and bake at 325 for about 30 to 35 minutes, until the filling is just set.
12. Remove from the oven and let cool to room temperature on a rack. Carefully remove the fluted ring from around the crostata and transfer the crostata your serving plate.
13. Dust with powdered sugar.