Buttermilk-Honey French Toast

French toast wasn’t always fancy. My dad called it “eggy bread,” because he made it by dipping bread only in egg. Nowadays, on indulgent weekends, I soak stale day-old challah in a buttermilk mixture, which gives it a more complex flavor. With a drizzle of warm, runny honey that sticks to your hands, this French toast is the best reason to wait for Sunday.