How much baking powder per 100 g of plain flour must I add in order to get 100 g of UK self-raising flour?

Question

I want to bake/cook British recipes, but I live in a country where self-raising flour doesn't exist. I need to add "level teaspoonfuls" of baking powder or bicarbonate of soda. How many level tsp-fuls per 100 grammes of plain flour??

Answer 1

From the joy of baking website:
Self-Rising FLOUR (1 cup) = 1 cup similar grade flour + 1 1/2 teaspoons baking powder + 1/4 teaspoon salt

Also on the Joy of baking website, 1 cup (all purpose flour) = 140 grams.

For 100 grams of flour... add 1 tsp of baking power + couple pinches of salt.

Answer 2

1 cup sifted all purpose flour + 1 1/2 tp baking powder + 1/8 tsp salt is your substitute for a cup of self rise.

Answer 3

Generally it's 10% so 90g's of plain 10g's of baking powder. I bake alot and I use self raising all the time in favour of plain, hope this helps.