1 (12 ounce) package rice noodles
2 tablespoons butter
1 pound boneless, skinless chicken breast halves, cut into bite-sized pieces
1/4 cup vegetable oil
4 eggs
1 tablespoon white wine vinegar
2 tablespoons fish sauce
3 tablespoons white sugar
1/8 tablespoon crushed red pepper
2 cups bean sprouts
1/4 cup crushed peanuts
3 green onions, chopped
1 lemon, cut into wedges