Dame Mary Berry at Cheltenham Racecourse, England (AP Photo/Dave Shopland)You might already know that Mary Berry’s favourite cake is a Victoria sponge (made using the all-in-one method, please – she doesn’t see the point of creaming the ingredients separately). But her culinary wisdom doesn’t end there. Far from it. She whacks some butter in with her stewed apples, a process I’ve since nicked, and puts Thai curry paste in her tomato soup (I stole that, too). And rec