expression, ichidan verb
dunk in liquid; immerse in liquid
Used for dipping or submerging something, especially food, into a liquid. The phrase is a set expression combining 液体 (liquid) + に + 浸ける/漬ける (to soak/immerse).
ビスケットを液体に浸けて食べる。
I eat the biscuit after dunking it in liquid.
パンをスープの液体に浸けると柔らかくなる。
The bread becomes soft when you dunk it in the soup liquid.