(click on the text to highlight each stage):

1. Pre heat the oven to 160c
2. Cream the margarine and sugar
3. Gradually mix in the eggs
4. Sieve in the flour and baking powder and mix
5. Cook for 1hr
6. Leave to cool
7. Mix in the required amoung of colour to the butter
8. Add icing sugar and mix together
9. Pipe onto the cake and decorate with sprinkles and glitter