Huckleberry
Poison Trainer
Mmh. I doubt that would be the case. I mean, they didn't introduced a macaron Pokémon in Kalos. I doubt they would go as far as making a malasada Pokémon.
They seemed to have learned their lesson with Vanillite's evolution line. I don't think they are going to make Pokémon very heavily inspired by food like these Pokémon again. Swirlix and Slurpuff were based on cotton candy and cupcakes but it was a lot more subtle than Vanillite and such. If they are going to create a food-based Pokémon, I expect it to be gently mixed with creature-like features like Swirlix and Slurpuff.
I know that the Vanillite gets a lot of flack for looking like ice cream, but I like the fact that its lore states that ice cream cones were made to look like Vanillite, rather than a pokemon randomly looking like food.