If you are pulling breadsticks from the freezer, let them defrost at room temp for a few hours (or overnight) before reheating.  You can also microwave on “defrost” for 1-2 minutes, or until thawed. To reheat, place breadsticks on a parchment-lined baking sheet and bake at 350 degrees F for 10-15 minutes, or until they are warm. Serve immediately.