- Sift together flour, baking powder and salt, set aside.
- Beat together egg whites and cream of tartar using a hand mixer, and beat in high speed. Slowly add all of the sugar and continue beating until medium peaks form. Set it aside.
- On another bowl whisk egg yolks, vanilla, milk, oil and water, stir this in to the flour mixture then mix gently until batter is smooth and even in consistency.
- Now fold the batter and egg white mixture together. Divide the mixture evenly in two 9 x 5-inch loaf pan Bake in a 160C pre-heated oven for 25 to 30 minutes or until a cake tester comes out clean. Remove from oven, let it cook then brush loaf with melted butter on top.