waht deos hydrapple tatse lik

probably like a very sugary apple

Probably like a snake.

I mean I also assume a dragon tastes like a snake, also depends what kind of dragon.

Hydrapple is not the apple, just the hydra in the apple (that's what Applin being the worm and not the apple implies at least).

I'd imagine it tastes like a squishy dragon or worm.