Rhub-Apple Frangipane Crostata

This rich crostata is a sort of spin off of a classic British Bakewell tart. If you are a devotee of the Great British Bake Off, as I am, you might be familiar with Bakewell tart, as contestants are sometimes asked to bake their own version during the competition. It features a short cut (fat-rich) pastry spread with jam and topped with frangipane, a th…