Cook bacon, in a skillet, air fryer, or oven until golden brown and crisp
Place bacon on a paper towel-lined plate
If possible, reserve ½ cup of bacon fat and refrigerate until solid
Preheat oven to 375 degrees F
In a medium bowl, whisk together the flour, baking soda, salt, and baking powder
In a separate, larger bowl, use an electric mixer to combine the butter, bacon fat, sugars, bourbon, and vanilla
Mix in the eggs, one at a time, until well combined
Beat in the flour mixture
Stir in the bacon and chocolate
For cookies, drop by rounded tablespoonfuls onto a parchment paper-lined cookie sheet. For bars, evenly smooth batter into a parchment paper-lined baking pan
Bake until golden brown
Let cool completely, then store in an airtight container for up to 5 days or the freezer for up to 6 weeks