PoP-Sicle - Don't Push It, Fred Mystery Cache

There are many different types of popsicles. Some people prefer the traditional fruit flavors, others say popsicles could be anything frozen on a stick, including ice cream and more unusual flavors.

In order to get the final coordinates, answer the following Popsicle trivia question:

What flavor was the original Fred Flintstone’s Push-up Sherbert Treat?