This YouTube channel may not give you much language input, but it’s a good example of the demonstration task and you could try adding English explanations to one of these videos, or try making your own.
I sometimes visit family in Portland, Oregon, where street food is very popular. My favorite is Nong’s Khao Man Gai.
And this is a favorite memory, from a trip to Enoshima (and the cat waiting for leftovers)
What’s your favorite street food story?