I would assemble the stove, after getting it clean of any debris that might be evident, and then light it carefully.  Observe the result.  You might have a varied color flame as the salt and sugar burn off, but I doubt there will be any significant damage.  

I have never experienced the problem you describe, but I am sure goo has been spilled on stoves and gas jets in the past.  Are there any words of caution in the owners manual?  If this were to be  significant issue, I would think there would be....

 

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