WHAT FOOD AM I ?

I'm often served with cold meat for the ultimate dream 
Never served in desserts or mixed up with cream 
Food connoisseurs have me with cheese 
Doesn't matter what kind I aim to please 

Everyone associates me with burgers that much is true 
I'm found on the pickle shelf if you want a clue 
I am always in vinegar I think you will find 
Eating too much of me will blow your mind 

I hope this poem has you thinkin and smirkin 
The answer of course is I am a gherkin