I'm using this Orange & Chocolate Chip Muffins recipe from Technicolor Kitchen. Another great blog for many interesting recipes. I made 3 orange muffins and 3 with chocolate chips. Used up 1 orange for 60ml orange juice for half the recipe and yielded 6 small muffins. The method is as simple as the apple muffins, just mix the wet and dry ingredients only.
I'm very interested in making muffins nowadays. Think it's easier and suitable for lazy me. :) So expect more muffins from me soon.
