Heat oven at 200 degrees C
Add sweet Potatoes to a baking tray with some oil and salt, mix well.
Bake for 20 minutes, until cooked
For the sauce: Add coconut cream, ginger and cilantro to a blender and blend to a fine paste and strain
Heat a tbsp of oil in a skillet
Add cumin and mustard seeds
Once they splutter, add curry leaves and chopped chillies
Add the strained mix
Add salt, cover and bring to a gentle simmer
Add the baked sweet potatoes
Top with some fresh cilantro and a squeeze of lime.
Serve with rice.