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The perfect Christmas gift for you or a loved one
Heat oven to 200C/180C fan/gas 6. Drain the oil from the sardines into a bowl. Add the sweet potato slices and thyme, and toss until well coated.
Line an ovenproof dish about 25cm x 15cm with half the sweet potato slices. Mash the sardines roughly with a fork and spread them over the sweet potato, then top with the remaining slices. Cover tightly with foil and bake until the potatoes are very tender when pierced with a sharp knife – it will take about 45 mins. Leave to cool a little before serving to your dog.