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How to make self-raising flour

How to make DIY self-raising flour from baking powder and plain white flour.
Course Baking Basics
Cuisine British
Keyword baking, baking powder, DIY, plain white flour, self-raising flour
Prep Time 5 minutes
Total Time 5 minutes
Servings 100 g
Author Izy Hossack


To make 100g self-raising flour

  • 95 g plain white flour (all-purpose flour)
  • 1 ¼ tsp (5g) baking powder

OR To make 1 cup (US) self-raising flour:

  • 116 g (1 cup minus 1 ½ tsp) plain white flour (all-purpose flour)
  • 1 ½ tsp (6g) baking powder


  • Place the flour into a metal sieve (strainer) set over a bowl. Add the baking powder on top and sift both together into the bowl.


  • Make sure you're using level teaspoons
  • 1 tsp = 5ml
If using volume measurements for the flour, use the spoon & sweep method to measure: fluff up the flour first, spoon flour into the cup until it is above the rim then and sweep the excess away with the back of a knife. Do not tap/shake the cup nor press the flour into the cup.