Put your ingredients (100g plain flour, 1 tsp baking powder) into a large bowl.
Mix together (I like to use a whisk) until the baking powder is evenly distributed in the flour.
Your self-raising flour is now ready to use in your chosen recipe.
This recipe will give you ever so slightly over 100g of self-raising flour (due to the weight of the baking powder). However, you shouldn't notice a difference in the results of your baking by using it as a substitute for 100g of self-raising flour.
Calories: 342kcal | Carbohydrates: 71.7g | Protein: 10g | Fat: 1.3g | Saturated Fat: 0.2g | Sodium: 491.6mg | Fiber: 3.1g | Sugar: 1.5g
Any nutritional information provided is the estimated nutritional information per serving. Please refer to my guide to Charlotte’s Lively Kitchen nutritional information if you would like to learn more about how this is calculated.