Fry the bacon strips until they’re crispy. Drain them on paper towels and let them cool. Once cooled, crumble or chop the bacon into small pieces. Set aside.
Butter 2 baking sheets. Keep them nearby, as you’ll need them ready when the brittle mixture is done.
In a large saucepan, combine the sugar, corn syrup, butter, and water. Heat the mixture over medium heat, stirring occasionally with a wooden spoon until the sugar dissolves and butter melts.
Bring the mixture to a hard boil over medium high heat and stir frequently. A hard boil is one that won't stop with stirring.
Use a candy thermometer to monitor the temperature. You’re aiming for 300°F (the hard crack stage).
Once the caramel reaches 300°F, immediately remove it from the heat. Stir in the crumbled bacon and baking soda until well incorporated. Be careful, as the mixture will bubble vigorously.
Quickly pour the mixture onto the prepared baking sheets and spread it out evenly with a wooden spatula. Work fast, as the caramel sets quickly.
Let the brittle cool completely at room temperature. Once hardened, break it into pieces with your hands or a sturdy knife into rustic pieces.