Fry 1 pound of bacon in a large skillet over medium heat until crispy.
Set bacon strips aside to use as a garnish for your Old Fashioned. Combine bacon grease and 1 bottle (750ml) Southern Comfort in a jar and let sit at room temperature for at least 6 hours. Move the jar to your freezer for 8 hours or until the fat solidifies. Use a spoon to remove the fat, discard it and strain the Southern Comfort through cheesecloth or a coffee filter into a second jar.
For each Bacon-Infused Old Fashioned combine 1 sugar cube, 1 cherry, 1 orange slice, 3 dashes of bitters and a dash of sour soda in a glass and muddle.
Add ice, 2 ounces of bacon-infused Southern Comfort and top off with sour soda.
Finish off with your choice of garnishes.
