Lemon zest brings brightness, and baking powder adds a little lift and lightness. Sour cherry jam, with its balance of sweet and sour, is best in this tart; some brands might specify Morello ...

Lemon zest brings brightness, and baking powder adds a little lift and lightness. Sour cherry jam, with its balance of sweet and sour, is best in this tart; some brands might specify Morello cherries ...