Mr Shake

SUMMER DREAMS Vendors Reveal Favorite Flavors, How To Mix ‘Em By LIBBY CUDMORE • Special to www.AllOTSEGO.com RICHFIELD SPRINGS – Growing up, Katie Entwistle-Eddy knew if she wanted a cold treat on a hot summer day, Mr. Shake on Route 28 was the place to go. “This place has been here for more than 30 years,” she said. “Whenever my family went out for ice cream, we came here.” Later, she got a job there. And, in 2015, her parents…