Lotta's Bakery promised to bring back the great old bakeries of San Francisco's past. And what greater bakery was there than Blum's and Fantasia? Both brought to you by the genius and hard work of Ernest Weil, creator of the real San Francisco Treat: Coffee Crunch Cake. Lotta's is now baking the cake by special order only. Treat yourself! Lotta's Bakery, 1720 Polk Street (between Clay and Washington), 415-359-9039.