Roman sour cherry jam tart in buttery pastry is a classic Italian bakery staple. This beloved mediterranean dessert balances sweet and tart for a perfect family treat.
In a large bowl, whisk together flour, sugar, salt, and lemon zest until evenly combined.
Cut very cold butter into small cubes and rub into the dry mixture using your fingertips until the mixture resembles coarse crumbs.
Beat eggs with vanilla extract, then mix into the flour-butter mixture until a soft dough begins to form. Do not overwork; stop when the dough just comes together.
Divide the dough: use two-thirds to line a 9-inch tart pan, pressing evenly across the bottom and up the sides. Chill the pan and the remaining dough for at least 30 minutes.
Spread sour cherry jam evenly over the chilled crust. Roll out remaining dough and cut into ½-inch strips for the lattice. Arrange the strips decoratively over the jam, gently pressing the edges to seal.
Bake the tart at 350°F (175°C) in the center of the oven for 40–45 minutes, or until the crust is golden. Cool completely in the pan before slicing for best texture.