I have a real groaner that I heard from a friend. You have a carrot, and put it in a pot. You have a tomato, and put it in a pot. You have a potato, and put it

I have a real groaner that I heard from a friend. You have a carrot, and put it in a pot. You have a tomato, and put it in a pot. You have a potato, and put it in a pot. What's in the pot? 三つ野菜だ。"Three vegetables." It sounds like "Mitsuya Cider," a brand of soda.