What character might ler1 be for "不渗汤的面条"?
Both of the words are correct. 干溜儿/干熘儿 is a kind of noodle in Chongqing. It's "real" name is 干溜面/干熘面, as you can see in this recipe. It seems that the locals like to call it 干溜儿/干熘儿, as you can see from this page or this page.

A search for both terms returned the same kind of noodles.