self-raising flour
US /ˌselfˈreɪzɪŋ ˈflaʊər/
UK /ˌselfˈreɪzɪŋ ˈflaʊər/
1.
flour that has a raising agent (such as baking powder) already added to it
:
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For these pancakes, you'll need self-raising flour.
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She always uses self-raising flour for her cakes to ensure they rise well.