If you’re a fan of Kelly’s Roast Beef, you know that their mouth-watering sandwiches are topped with a delicious BBQ sauce. But have you ever wondered what kind of sauce they use? In this article, we’ll dive into the details and uncover the secrets behind Kelly’s BBQ sauce.

The History of Kelly’s Roast Beef

Before we get into the sauce, let’s take a quick look at the history of Kelly’s Roast Beef. Founded in 1951, Kelly’s Roast Beef is a family-owned business that started as a simple hamburger stand in Massachusetts. Today, they are known for their famous roast beef sandwiches and have several locations throughout the state.

What Makes Kelly’s BBQ Sauce Special?

Now let’s talk about the star of the show – Kelly’s BBQ sauce. This tangy and slightly sweet sauce is what sets their sandwiches apart from others. It’s no surprise that customers often ask what kind of sauce is used on their sandwiches.

After some research, we’ve discovered that Kelly’s BBQ sauce is actually made in-house using a secret recipe. While they haven’t revealed exactly what goes into it, we do know that it contains a blend of spices and tomato-based ingredients.

The Ingredients

While we can’t give away the exact recipe for Kelly’s BBQ sauce, we can make some educated guesses based on its flavor profile. Some common ingredients found in barbecue sauces include:

  • Tomato paste or ketchup
  • Vinegar
  • Brown sugar or molasses
  • Worcestershire sauce
  • Mustard
  • Cayenne pepper or hot sauce
  • Garlic powder or minced garlic

The Flavor

Kelly’s BBQ sauce has a tangy and slightly sweet flavor with a hint of smokiness. It’s not too spicy, but it does have a little bit of kick to it. The sauce is thick and coats the meat well, making for a delicious and messy sandwich.


In conclusion, Kelly’s BBQ sauce is a secret recipe that is made in-house using a blend of spices and tomato-based ingredients. While we may not know the exact recipe, we do know that it has a tangy and slightly sweet flavor with a hint of smokiness. If you’re ever in Massachusetts, be sure to stop by Kelly’s Roast Beef and try their famous sandwiches for yourself!