When thawing tofu, let it sit in hot water for five minutes.
冷凍豆腐 = frozen tofu
解凍する = to thaw
とき = when
お湯 = hot water
に = in
五分 = five minutes
つける immerse -> let (something) sit in
も一つの言い方は以下です。それはもっと説明的な言い方はです。
You can thaw frozen tofu by sitting it in hot water for five minutes.
You can do XX by OOing.
You can open the door by using this key.
この鍵でドアを開けられるよ。