Lemon Yoghurt Cake
Cream the butter and sugar together. Add zest and eggs one at a time, beating well between each one to ensure the mix does not split. Fold in the flour and baking powder alternately with the yoghurt.
Upside Down Pear & Ginger Cake
Sprinkle 1/2 cup sugar over base of a greased cake tin. Pour 1/3 cup butter over the sugar and then arrange pear slices in a single layer over butter and sugar.