How to make Self - Rising Flour?

How to make self rising flour for cakes, biscuits / cookies / breads …?

Ingredients

For 1 cup / 200 ml / 8 oz all purpose flour (maida):

1 cup / 200 ml / 8 oz all purpose flour (maida)

1 teaspoon fresh baking powder

¼ teaspoon salt

Method

Sieve thrice all ingredients and use in place of self rising flour.