Sport peppers are a key ingredient in the Chicago-style hot dog.
From Tomato Growers Supply Company's page about Sport peppers:
Sport: This Capsicum annum type of pepper is popular for its use as a pickled pepper to go on hot dogs and other sandwiches. It is especially well known as an essential condiment in a Chicago-style hot dog. Peppers resemble Tabasco peppers, but the Sport pepper is larger, about 1-1/2 inches long and 1/2 inch wide. They are medium-hot and produced in great abundance on sturdy plants. 75 days.
These are not readily available outside the US (at least in my region). What is a good substitute, particularly for making the hot dog?
Best Answer
Not sure where you're located, but any pickled pepper will work. In Europe and the Middle East, peppers like this are popular:
I personally use pickled jalapeños if I don't have sport peppers, but the ones in the images (Turkish pickled peppers) would be the most similar if you can find them.