Lulu McAllister Churchill jump-started her relationship with serious wine earlier than most. When she was 18, the Massachusetts native moved north from her adopted home of San Diego to attend a yearlong California Culinary Academy program. She stayed with an uncle in Tiburon. With their opposite schedules, they’d rarely connect, but she would leave him the leftover pastries and treats she made at school, and in turn, he’d leave her the leftover wine from the bottles he was drinking, complete with a log of his impressions. Lucky for McAllister, his tastes tended toward white Burgundy and Champagne.