
Step 1 · Brown the Beef
Heat the oil in a large pan over high heat. Add the beef and cook for 5 minutes, breaking it up, until browned.
Step 2 · Cook Vegetables
Add the onion and carrots and cook for 3 minutes. Stir in the tomato purée, Worcestershire sauce and thyme for 30 seconds.
Step 3 · Simmer with Potatoes
Add the potatoes, stock or water and salt. Bring to a boil, then cover and simmer over medium heat for 12 to 15 minutes, stirring once or twice, until the potatoes are tender.
Step 4 · Add Peas
Stir in the peas and cook uncovered for 2 minutes.
Step 5 · Thicken Gravy
Mix the cornflour with the cold water, stir it into the pan and simmer for 1 minute until the gravy lightly thickens. Taste before adding more salt and serve.