Potato pancakes

Name: Potato pancakes
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: British
Ingredients: 250g cold mashed potato, or 2 medium-size floury potatoes, cut into chunks; 75g plain flour; 1 tsp baking powder; 2 eggs; 125ml milk; 1 rounded tbsp finely snipped chives; 1 tsp sunflower oil; knob of butter; crispy baconand scrambled eggs to serve, if you like