Sweet potato tarte tatin Get more creative with your veggies and make them the star of the show at your next dinner. Try our Sweet potato tarte tatin. PREP TIME 25 min, plus cooling |COOK TIME 1 hr 15 min |SERVES 6  INGREDIENTS CARAMELISED ONIONS 20g butter 1 tbsp olive oil 4 onions, thinly sliced  … Continue reading Sweet potato tarte tatin