Kung Pao Potatoes

Name: Kung Pao Potatoes
Ingredients: 2 lb. Yukon Gold potatoes, peeled and cut into 2 chunks; 0.25 c. cornstarch; 0.5 tsp. freshly ground black pepper; 0.25 c. canola oil; 14 dried red chili peppers; 1 tbsp. Szechuan peppercorns; 1 tbsp. freshly grated ginger; 3 cloves garlic, chopped; 3 green onions, cut into 2 pieces, plus more for serving; 1 tbsp. Chinese cooking wine or dry sherry; 3 tbsp. low-sodium soy sauce; 2 tbsp. rice vinegar; 1 tbsp. granulated sugar; 1 c. low-sodium vegetable or chicken broth; 1 tbsp. sesame oil; 1 medium red onion, chopped; 1 red bell pepper, chopped; 0.5 c. roasted peanuts