In Cajun-French 'envie' (pronounced Auh-Vee) means a sudden, persistent hunger or longing for something. Last week, I woke up with a monster-sized envie for lemon. I made Alton Brown's refreshing and tart barley-lemon water. I made a New Orleans-style BBQ sauce, an intoxicating concoction that makes even lemon seem rich. Both were delicious, but neither hit the spot like I knew a good dessert would. I found a gem of a recipe in The Bon Appetite Cookbook. My version ups the le