Mapo Tofu Tots

Name: Mapo Tofu Tots
Ingredients: 1.25 pounds frozen bite-sized potato nuggets (such as Tater Tots®); 2 tablespoons vegetable oil; 0.125 teaspoon salt; 2 tablespoons Sichuan peppercorns; 0.5 pound ground pork; 0.5 cup chopped onion; 1.5 tablespoons chopped red chile peppers, divided; 1 tablespoon grated garlic; 1 tablespoon grated fresh ginger; 1 cup chicken stock; 3 tablespoons Chinese cooking wine (Shaoxing wine); 2 tablespoons fermented bean paste (doubanjiang); 2 tablespoons soy sauce; 1 (8 ounce) container firm tofu, cubed; 1 teaspoon cornstarch; 1 teaspoon water; 1 tablespoon chopped green onion, or to taste