Although I’m not going shopping at the moment, it seems that flour is still in short supply. Word has it that the packaging for domestic usage can’t yet match the demand – we’ve become a nation of bakers – excellent news !
If you need to convert Plain flour to Self raising, add 1 rounded teaspoon of baking powder to every 75g Plain flour. Don’t be tempted to pile up the teaspoon (thinking you’ll get a better rise on your cakes..) because you’re likely to finish up with a burnt mess and an oven to clean !