Step 1

Combine flour, sugar, and salt in processor; blend 5 seconds. Add butter and cut in, using on/off turns, until mixture resembles fine meal. Add egg and process just until moist clumps form. Gather dough into ball; divide in half. Flatten each half into disk. Wrap in plastic and chill until firm enough to roll, about 1 hour. DO AHEAD: Can be prepared 1 day ahead. Keep chilled.

Step 2

Position rack in bottom third of oven and preheat to 325°F. Mix preserves, chopped cherries, peel, and almond extract in medium bowl.

Step 3

Roll out 1 dough disk on lightly floured surface to 11-inch round. Transfer round to 9-inch-diameter tart pan with removable bottom. Press dough gently into pan; trim overhang even with top of pan sides. Spread filling in crust; sprinkle with pistachios. Roll out second dough disk on lightly floured surface to 11-inch round; cut into 3/4-inch-wide strips. Arrange several strips, spaced 3/4 inch apart, over filling. Top with more strips at slight angle, forming lattice. Press strip ends to edge of pan, trimming overhang.

Step 4

Beat egg and whole milk in small bowl to blend. Brush some of glaze over lattice crust; sprinkle with 2 tablespoons sugar.

Step 5

Bake tart until crust is golden brown and cherry filling is bubbling thickly, about 1 hour 5 minutes. Cool tart completely in pan on rack. DO AHEAD: Tart can be prepared 1 day ahead. Cover and store at room temperature.