Spicy Asian Noodles with Chicken Recipe

4 tsp sesame oil, divided
1 lb boneless, skinless chicken breasts, cut into 1-inch pieces
1 Tbsp fresh ginger, peeled and grated
2 garlic cloves, minced
1 bunch green onions, sliced
¼ cup fresh cilantro, chopped
3 Tbsp low-sodium soy sauce
2 Tbsp rice vinegar
2 Tbsp hoisin sauce
2 tsp sambal oelek (ground fresh chile paste)
8 oz package thin rice sticks
2 Tbsp dry-roasted peanuts