Lexis-clean-kitchen-lemon-bars, bake for 25-30 minutes, or until crust is lightly brown. meanwhile, make lemon curd: place whole eggs and yolks, sugar, lemon zest and juice and sea salt in a medium pot. over low heat, whisk the lemon curd until it becomes thick enough to coat the back of a spoon and take off heat. this process should take around 8-10 minutes.