Name: Sweet n sour sirloin stir-fry with ranch mashed potatoes
Prep time: 15 min
Cook time: 25 min
Yield: 4
Cuisine: Asian
Ingredients: 680g sirloin, 2 1/2-cm thick; 910g potatoes, peeled and cubed; Salt; 3 tbsp vegetable, groundnut or rapeseed oil; 2 large red peppers, seeded and sliced; 1 large green pepper, seeded and sliced; 1 bunch green onions, cut into 4 to 5-cm pieces on bias, greens and whites; 350g shelled frozen edamame; 3 tbsp brown sugar; 3 tbsp soy sauce; 55g yellow mustard; 55g tomato ketchup; 160ml buttermilk; Freshly ground black pepper; A few dashes hot sauce; Handful fresh flat-leaf parsley, chopped; Handful fresh dill, chopped; Handful fresh chives, chopped