Answer:
This food is usually grilled and put between two buns, with cheese, tomato and pickles.
It nukes food at the touch of a button.
A wonderful elixir, It is your fluid fixer. Gulp it down and turn like a concrete mixer. Dark as night and sweet as sin, It's like liquid heroin.
What nut has a hole and is squishy?
What food goes on and on without a beginning, middle, or an end?
What is always coming but never arrives?