Brussels Sprouts with Pancetta - Fresh-Pressed Olive Oil

Ingredients

• 1/4 cup extra virgin olive oil
• 2 tablespoons unsalted butter
• 2 pounds baby brussels sprouts, washed and trimmed (cut larger ones in half)
• Salt and pepper
• 6 ounces pancetta in small dice (1 1/2 cups)
• 3 tablespoons minced shallots
• 1 tablespoon minced garlic
• 1/2 cup balsamic vinegar
• 1/2 cup rich chicken broth, plus more if needed
• 2 tablespoons chopped flat-leaf parsley