I want to make some cakes for school cake day fund raiser

[spudmasher]

but I have run out of self raising flour. Can't be arsed to slush to the shop. Would plain plus a bit of baking powder do the trick? If so how much? Thanks Mnet domestic godesses.

should tell you on the tub of baking powder but if not then

"add 4 level tsps of baking powder to each 225h/8oz plain flour"

per super cook baking powder

Thank you Wurly. You are a star.