Whisk together the vinegar, sugar and pepper in a small saucepan until smooth, bring to a simmer over medium heat, and simmer until slightly thickened, about 3 minutes.
Brush some canola on a baking sheet. Lay the pancetta out in single layer bake in the oven for 5 minutes. Turn the pancetta over, brush with the balsamic mixture, and return to the oven to continue baking until golden brown and crisp, about 10 minutes longer. Remove to a platter.