I have been really lazy to post the recipes which is there in my drafts for ages. I made this one long ago when I had a lone grapefruit and found the recipe in Chef in you. I made very slight changes to the recipe. It tasted a little bitter and I thought , I could have added a cup of sugar and also excluded the zest. But I really loved the walnuts and the taste of ginger in it. On the whole the bread was good and I smeared some jam over it to shield the slight bitter taste. Thanks Dk for the recipe. You can also see a post on how to supreme a grapefruit at Chef in you (http://chefinyou.com/2010/01/how-to-supreme-fruits)
Combine the flour, baking powder, baking soda, grated ginger and sugar in a bowl and keep aside.
Whisk the eggs in seperate bowl. Combine the yogurt , milk and oil and add it to the eggs. Stir well. Add the supremed grape fruit segments into this.Fold the egg mixture into the flour mixture until moistened without any lumps.Add the crushed walnut and mix well. Transfer this into a well greased loaf pan.
Bake this in a preheated oven at 180c for 45-50 minutes. Insert a knife or skewer to test whether the cake is done.
Cool and turn it on a wire rack. Cool well before slicing them.