Colcannon with Sausages and Guinness Gravy

Name: Colcannon with Sausages and Guinness Gravy
Prep time: 15 min
Cook time: 1 h 5 min
Total time: 1 h 5 min
Yield: 6 portions
Ingredients: 3 oz lacinato kale; 24 oz russet potatoes; 5 oz whole milk; 4 oz water; 1 tsp salt; &frac18; tsp ground black pepper; 2 tsp olive oil; 12 oz pre-cooked pork sausages; 1 oz unsalted butter; 1 oz unsalted butter; 1 oz all-purpose flour; 7 oz beef stock; 4 oz Guinness®; 2 tsp sugar; 2 tsp Dijon mustard; 1 tsp Worcestershire sauce; ½ tsp salt; &frac18; tsp ground black pepper