Open-Faced Flank Steak and Arugula Sandwich with Fig & Red Onion Jam - SippitySup

Ingredients

• 2 tablespoons granulated sugar
• 1 pinch cayenne pepper, or to taste
• 1 teaspoon salt, plus more as needed
• 1 large red onion, chopped
• 1 pound fresh figs (any type), halved lengthwise
• 2 ounces walnuts, toasted (⅓ cup)
• 1 pinch black pepper, pluse more as needed
• ½ cup balsamic vinegar
• .75 cup olive oil
• 1 pinch red pepper flakes, or to taste
• 1 (1 ½- to 1 ¾‑pound) beef flank steak
• 1 bunch arugula, washed and dried
• parmesan cheese, thinly sliced or grated to taste