Preheat oven to 180°C. Line a 12 cup muffin tray and set aside.
In a bowl, combine the flour, sugar and salt and mix.
In a jug, combine the egg, milk and oil.
Add the additional ingredients into the bowl and fold in the wet ingredients using a spatula until all ingredients are just wet.
Using a 1/3 cup measure, fill each muffin cup and smooth the top.
Bake for 22-25 minutes. Leave to cool in the tray for 5 minutes and then cool on a wire rack.