My grandma likes to gift me with jars of lingonberry preserves sold at Ikea. After failing to incorporate them into a tart with vanilla custard (too runny), the idea for a tart with just the jam seemed so much simpler - and super easy! Because lingonberries are pretty tart, I added a few spoonfuls of strawberry jam. —kelisenk
chilled, unsalted butter, cut into cubes
Blend flour, sugar, and salt in food processor 5 seconds or whisk in large bowl if using pastry blender. Add butter, and blend until coarse meal forms. Add egg, egg yolk, and water. Blend until moist pea-sized clumps form, adding teaspoonfuls of water if dough is dry. Gather dough into ball, divide into 2 pieces, 1 slightly larger than the other. Wrap and chill at least 1 hour and up to a day.
Roll out larger dough piece onto floured surface to 12-inch round. Transfer to 9-inch diameter tart pan with removable bottom. Fold in overhang and press, forming double-thick sides. If desired, roll out small dough piece to 11-inch round and cut into 1/2-inch wide strips to create lattice pattern over filling.
Preheat oven to 375 degrees. Stir preserves, lemon peel, and almond extract in small bowl to blend. Spoon filling into crust in pan. Bake tart for 55 minutes or until crust is golden and filling bubbles thickly. Cool tart in pan and store at room temperature.