Slice the kielbasa into 2″ bites, then slice each one 3-4 times about 1/2 way down, not cutting all the way through. Lay the bites on a baking sheet.

In a bowl mix together bbq sauce, mustard, and maple syrup, if using. Brush or spoon on each bite.

Bake in the oven at 425 degrees for 20-30 minutes until carmelized.

Serve with leftover sauce for dipping!