Pastel de LimónThe lime glaze on this simple single-layer cake gives a nice tartness to balance the sweet cake. Limes, mainly the small Key lime, are grown and used daily in the Mexican kitchen, often adding flavor to sweets. Serve this single-layer cake with fresh fruit and whipped cream to end any Mexican meal. I like puréed mango folded into Sweetened Whipped Cream as a topping for the cake.