King Burgers - RecipesRun

Ingredients

• Optional toppings: Shredded lettuce, sliced tomato and red onion
• 3 tbsp. butter, softened
• 6 hamburger buns, split
• 2-1/2 tsp. hamburger seasoning, divided
• 1/3 cup beef broth
• 1-1/2 pounds ground beef
• 1/8 tsp. pepper
• 1/8 tsp. salt
• 2 tbsp. Dijon mustard
• 2 tbsp. prepared horseradish
• 1/4 cup mayonnaise
• 2 tbsp. butter