Follow the steps in order for the best result.
Begin by whisking the egg in a medium-sized bowl.
Incorporate the milk, sour cream, and melted butter or margarine into the bowl with the egg.
Gradually add the Bisquick baking mix to the wet ingredients, ensuring it's thoroughly combined. Stir until you have a smooth batter.
Gently fold in the cooked and crumbled bacon strips, followed by the shredded cheddar cheese, distributing them evenly throughout the batter.
Ladle the bacon cheddar waffle batter onto a preheated waffle iron.
Close the waffle iron and allow the waffle to cook until it reaches a golden brown color and the steaming ceases – typically around 4-5 minutes.
Serve immediately, drizzled with your favorite maple syrup or a fruit-flavored syrup for an extra burst of flavor.