noun
baking powder
A leavening agent used in baking to make dough rise. Commonly used in recipes and cooking contexts.
このケーキにはふくらし粉が入っています。
This cake contains baking powder.
ふくらし粉を小麦粉に混ぜてください。
Please mix the baking powder into the flour.
Compound of ふくらし (from 膨らす, 'to make swell') + 粉 (powder).