Place the bacon in a large, deep skillet, and cook over medium-high heat, turning occasionally, until evenly browned, about 10 minutes. Drain the bacon slices on a paper towel-lined plate. Crumble.
Beat the sugar, butter, eggs, and vanilla extract with an electric mixer in a large bowl until fluffy and smooth. Stir in flour, cocoa powder, baking soda, and salt. Mix in the chocolate chips and bacon. Drop cookies by rounded spoonfuls onto ungreased cookie sheets.
Bake for 10 to 12 minutes in the preheated oven. Let stand 5 minutes before transferring to wire racks to cool completely.
