What is the meaning of 串串儿？ The only translation I can find has to do with strings...?

I heard this phrase when someone was speaking about 四川菜, is this related to 火锅？ Is this phrase a joke of sorts about the Sichuan dialect ? 

Haha, Thank you for your answer(s) : )
Read 串 then 串儿, a bit like 麻辣烫 on sticks!