In a mixing bowl, put the mayonnaise, ketchup, yellow mustard, and chili sauce.
Stir these ingredients together using a spoon until they're well mixed.
Add the finely chopped kosher dill pickles, onion powder, garlic powder, paprika, and just a pinch of cayenne pepper into the bowl.
Mix everything together thoroughly. Make sure all the ingredients are evenly combined.
Cover the bowl with plastic wrap to keep it fresh, and put the bowl in the refrigerator for about 30 minutes. This helps the flavors come together.
After 30 minutes, take the bowl out of the refrigerator.
Your homemade Jack Brown's Sauce is now ready to enjoy! You can use it as a delicious dip or spread for burgers and sandwiches.