Place the first 6 ingredients in your slow cooker. Place the stock and flour in a bowl and whisk to combine. Stir into the ingredients in the slow cooker until well combined. Cover and cook on low for 8 hours. Stir in the cream, peas, salt and pepper and cover and cook another 15 minutes, or until the peas are heated through.
Note: This recipe is designed for an oval-shaped slow cooker with a 5 litre or more capacity.