One of my dearest friends, Kyra Effren, lives in Dallas but spends part of every year with her mother in Cape Town, South Africa. While Kyra is there, she bakes scones for her mother, who was born in Wales and knows good scones, almost every day. These are easy to mix in the food processor—up to a point. I like to pour the powdery mixture into a bowl before adding the liquid so the dough doesn’t get overworked and tough in the machine.