In a large skillet, cook the ground beef over medium heat until browned and cooked through. Drain excess fat if necessary.

Add ketchup, brown sugar, mustard, Worcestershire sauce, onion powder, and garlic powder to the skillet. Stir to combine and simmer for 10 minutes to meld flavors.

While the meat mixture simmers, toast the hamburger buns with butter until golden brown.

Spoon the meat mixture onto the toasted buns. Garnish with pickles if desired. Serve warm.