cheese and bacon puff

Ingredients

• 1 1/2 cups milk
• 3 - eggs
• 1 cup flour
• 1 tablespoon bacon drippings
• 1 teaspoon worcestershire sauce
• 1 teaspoon salt
• 1/2 teaspoon dry mustard
• 1/4 teaspoon cayenne pepper
• 1 cup american cheese, grated
• 1/4 pound cooked and crumbled bacon----6 slices
• 1/4 pound sliced mushrooms