La Famiglia. America's oldest (DelGrosso Foods is the oldest major family-owned producer of pasta sauce in America. Ferdinand and Mafalda DelGrosso raised four sons and three daughters, through whom the sauce making tradition continues). Since 1914. Family saucemaker. Uncle Fred's Fireworks Sauce a little heat with a burst of flavor. Every 4th of July, crowds gather for the fireworks show at DelGrosso's Amusement park in Tipton, PA. Back in the park kitchen, our family lines up for a taste of Uncle Fred's Fireworks sauce. Fred explains, I use zucchini from my garden with just the right amount of onions, garlic and spices to make this tangy, tasty favorite. But be warned, if he catches you standing around the kitchen he'll put you to work.