Add all the ingredients listed above to your slow cooker and cook on low for 7 hours, I wouldn't recommend cooking on high as that's what helps to make the lamb so soft and tender
Prepare your mash by boiling the potatoes until soft, mashing and then adding in the creme fraiche, mixed herbs and salt and pepper. Add this on top of your slow cooker, take the dish out the electric compartment and place under the grill for 10-15 minutes until the mash is crispy
