(and their spicy Chipotle version) in the condiments or seafood aisle of several major retailers: Legal Sea Foods Tartar Sauce - Instacart
Ordering online is the most convenient way to stock up, especially if you live outside of New England. legal seafood tartar sauce where to buy
You can also find listings on Amazon and Walmart for shipping directly to your home. (and their spicy Chipotle version) in the condiments
As the official producer, Stonewall Kitchen lists the sauce for $5.49 (regularly $7.95). Note that it can frequently go out of stock due to popularity. legal seafood tartar sauce where to buy
This is often the most reliable way to find local stock and get it delivered in hours. Prices typically start around $2.69 for an 8 oz jar. You can browse available inventory at Instacart .