Preheat oven to 200 degrees C. Grease muffin cups or line with patty cups / muffin cases.
Place orange pieces into the blender with the egg, buttermilk, dates and butter. Blend thoroughly until mixture is thick, fairly smooth with flecks. Pour out into a large mixing bowl.
In a separate bowl stir together the flour, sugar, bicarb soda, baking powder, salt, cloves and ginger. Combine flour mixture with the orange mixture and stir or fold gently with a wooden spoon or spatula; only until dry ingredients have combined. Don't mind any lumps that may be present. Fill muffin tins to just under rims with batter.
Bake in preheated oven for 20 minutes until a toothpick inserted into centre of muffin comes out clean. Let stand in pan for five minutes, then remove to wire racks for cooling.