The 914 Collective on Instagram: "WALTER’S HAS A NEW DOG. 🌭🔥 It’s called The Big Walt and it’s basically the classic Walter’s hot dog… but bigger and more unhinged (in the best way). Also can we talk about the mustard??? Walter’s mustard is legitimately the best mustard on the planet. No debate. If you’re in Westchester and you’ve never been, this is your sign. If you HAVE been, go back. It’s been 107 years for a reason. P.S. If you like local food recs like this, you should sign up for Not Up