¾ lb. unsalted butter at room temperature 1 cup granulated sugar 1 tsp. pure vanilla extract 3½ cups all-purpose flour ¼ tsp. salt ¾ cup good raspberry preserves Confectioners’ sugar, for dusting 1.

High altitudes make cookies spread in the pan, cakes fall, and few baked goods turn out as they do at sea level. This twice-monthly column, published on Thursdays, presents recipes and tips that make ...