Cheesy hot dog soup: A vintage recipe from 1955

Ingredients

• 1 medium onion, chopped
• 1/2 cup chopped celery
• 5 tablespoons butter (divided)
• 1/4 cup flour
• 3/4 teaspoon dry mustard
• 2 bouillon cubes
• 2 cups hot water
• 6 cups milk
• 2 cups ( 1/2 pound) shredded process American cheese
• 1 box frozen mixed vegetables, cooked
• 1 teaspoon Worcestershire
• 3/4 pound frankfurters (hot dogs), sliced
• Chopped parsley
• Chopped pimiento