What did Ezekiel eat that tasted as sweet as honey?

Answer: A scroll

God told Ezekiel to eat a scroll and then speak to Israel; it was "as sweet as honey" in his mouth.

““Son of man,” He said to me, “eat what you find here. Eat this scroll, then go and speak to the house of Israel.” So I opened my mouth, and He fed me the scroll. “Son of man,” He said to me, “eat and fill your stomach with this scroll I am giving you.” So I ate, and it was as sweet as honey in my mouth.”— Ezekiel 3:1-3 (BSB)