280g plain flour
2tsp baking powder
1/2tsp bicarbonate of soda
110g granulated sugar
Grated rind of 1 orange
Juice of 1 orange + water to make 180ml
110g dark chocolate chips
90ml vegetable oil
Preheat the oven to 190C/375F/gas 5
Sift flour, salt, baking powder, and bicarbonate of soda in a large bowl.
In a separate bowl, beat the egg, stir in the sugar, orange rind, juice plus water, and oil.
Pour the liquid ingredients into the dry mixture, stir to combine (mixture should be thick and lumpy) . Stir in the chocolate chips.
Spoon into muffin tins or paper cases and bake for 20-25 minutes.
When grating the orange rind, be careful not to grate any of the white pith, it will make your muffins very bitter.