1 1/2 cups all-purpose flour
2 tablespoons sugar
1/2 teaspoon salt
10 tablespoons (1 1/4 sticks) unsalted butter, chilled, cut into 1/2-inch pieces
3-5 tablespoons ice water
1 lemon, zest finely grated
save 1/4 tsp for filling
2 c. fresh blueberries
NOTE: for frozen berries use I bag (2.5-3 cups), increase sugar to 1.5 tbsp and flour to 1.5 tbsp.
1 tablespoon of all-purpose flour
1 tablespoon of granulated sugar
1/4 teaspoon grated lemon zest
2 tablespoons freshly squeezed lemon juice
1 tbsp. butter
To make the crust:
Mix the flour, sugar, and salt in a processor. Add the butter. Pulse until the mixture resembles a coarse meal. Add the lemon zestice and water and pulse until moist clumps form. Gather the dough into a ball; flatten into a disk. (If the dough still crumbles and does not form into a ball, add another tablespoon of ice water.) Wrap the dough in plastic and refrigerate until firm, 30 min-1 hour.
Position the rack in the center of the oven and preheat the oven to 425 degrees F.
Roll out the dough to a 12-inch round. Transfer the dough to a heavy baking sheet lined with parchment paper or silpat.
For the filling:
Add the rinsed blueberries to a bowl and toss them with 1 tablespoon of the flour, 1 tablespoon of the sugar, the lemon zest, and the lemon juice. Place the mixed fruit on the dough circle, leaving a 1 1/2-inch border. Gently fold the border of the pastry over the fruit, pleating it to make an edge.
Brush crust with milk and sprinkle frosting sugar over crust. Dot the filling with butter.
Bake the crostata for 35 to 40 minutes, until the crust is golden and the fruit is tender. Let the crostata cool on rack, serve warm or at room temperature.