Place 1/2 cup oil and chilies in saucepan. Cook over low heat 2 minutes, or until chilies turn brown. Remove chilies from oil and discard oil.
Add Szechuan sauce to saucepan; cook 3 minutes. Add 4 tablespoons ginger, 2 tablespoons minced garlic and ground peppercorns; cook until fragrant, about 2 minutes. Add black bean sauce and cook another 2 minutes. Add chicken stock and bring to boil. Reduce heat to simmer and cook 20 minutes. Reserve.
In saute pan, heat 1 tablespoon vegetable oil over medium-high heat. Add remaining ginger, remaining garlic and scallions; cook 1 minute. Add pork and cook 5 minutes, breaking up with wooden spoon. Add soy sauce and combine. Reserve.
In saute pan, melt butter and remaining vegetable oil. Add pierogies and sear lightly, about 7 minutes on each side until lightly browned. Reserve.
In large saute pan, combine Szechuan sauce, ground pork mixture, seared pierogies, edamame and tofu. Cook over medium-high heat until combined, about 2 minutes. Garnish with bean sprouts.
