Place four 8-ounce ramekins in a baking dish at least 2 inches deep.
Divide crabmeat evenly between ramekins.
Top crabmeat evenly with chopped bacon and chives.
In a medium bowl, whisk egg yolks until smooth.
Slowly pour in cream, whisking to combine.
Whisk in the lemon zest, salt, and pepper.
Transfer cream mixture to a glass measuring cup or pitcher, and pour evenly into ramekins.
Fill the baking dish with 1 inch of hot water.
Bake crème brûlée for about 1 hour, or until the centers jiggle ever so slightly.
Transfer ramekins to a wire rack to cool for 20 minutes.
Refrigerate at least 30 minutes or overnight. If chilled overnight, let stand at room temperature 30 minutes before serving, or place in a preheated 300 F oven until warmed, if desired.
Top each crème brûlée evenly with ½ tablespoon turbinado sugar.
Use a blowtorch to caramelize the top of each. If you don't have a blowtorch, broil the crème brûlée in the oven until evenly golden brown on top.
Optionally garnish each crème brûlée with chives and bacon, and serve with lemon wedges.