Cut each hot dog into four pieces and place in Crockpot.

In a small mixing bowl, combine brown sugar, BBQ sauce and mustard; stir well to combine.

Pour BBQ mixture over hot dogs and stir well.

Place lid on Crockpot and cook on LOW 3-4 hours, stirring occasionally.

If sauce becomes too thick add 1/2 cup hot water and stir, then let hot dogs cook another 10 minutes or so.