noun
tempura flour
A pre-mixed flour for tempura batter, typically containing wheat flour, starch, and sometimes baking powder or egg powder.
天ぷら粉を使うと、簡単にサクサクの天ぷらが作れます。
Using tempura flour, you can easily make crispy tempura.
天ぷら is the dish itself, while 天ぷら粉 is the specific flour mix used to make the batter.
小麦粉 is plain wheat flour; 天ぷら粉 is a pre-mixed blend that often includes starch and leavening agents for a lighter texture.
Compound of 天ぷら (tempura) and 粉 (flour).