• 3 cloves garlic, minced, divided
• 2 teaspoons fresh ginger, minced
• 2 scallions, thinly sliced, plus 1 bunch, sliced on the bias, divided
• 4 tablespoons sesame oil, plus 2 tablespoons, divided
• 1 tablespoon light brown sugar
• 1 lb boneless, skinless chicken thighs, sliced into 1/2 inch (1 1/4 cm) strips
• freshly ground black pepper, to taste
• 2 large carrots, julienned
• 8 oz shiitake mushroom, stems removed, thinly sliced
• 1 tablespoon unsalted butter
• persian cucumber, thinly sliced