For the bacon: In a medium frying pan, saute the bacon until the fat has rendered and the bacon is crisp. Drain the fat from the pan, add the maple syrup and stir to blend. Saute until the maple syrup becomes thick, 1 to 2 minutes. Transfer immediately to a small bowl and let cool.
For the batter: With a standing or handheld mixer, blend the butter and sugars until light and fluffy, 3 to 5 minutes. Add the egg and beat until well blended, 1 minute. Add the vanilla and beat for 30 seconds more. Stir in the flour and baking soda with a wooden spoon. Add the bacon and chocolate and stir to combine. Scoop heaping teaspoons of dough onto the prepared baking sheet and sprinkle with sea salt. Bake until golden around the edges, 9 to 10 minutes.
Let the cookies cool for 1 minute, and then transfer them to a wire rack to cool completely.