Boiled Tofu
noun
豆腐 is tofu, and 湯 means hot water, making it tofu you've put in hot water, aka boiled tofu.
ゆどうふ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Will of course help to know 豆腐 as well.
最初は、どんなもんかなと思って湯豆腐を食べてみただけなんですが、そしたら好きになっちゃったんですよね。
At first, I just tried the boiled tofu out of curiosity, and then I grew to like it.