Step 1

Preheat the oven to 180ºC. Peel and cut the red onions into thin slices. Peel and cut the sweet potato into manageable chunks, and grate using a mandolin or a normal cheese grater. Be sure to follow product safety instructions carefully if using a mandolin, to avoid injury.

Step 2

Put the onions and sweet potato into a large bowl, then add the two beaten eggs, salt and pepper and the spices

Step 3

Mix the mixture thoroughly

Step 4

Then either: Line a baking tray with greaseproof paper and spray liberally with low calorie cooking spray. Roll the mixture into rough balls. Place onto the baking tray so they're not touching each other. Once arranged, spray again with low calorie cooking sprayOr spray a 12 hole muffin tray with a decent amount of low calorie cooking spray, then divide the mixture equally between all 12 moulds. Press them down firmly and spray the top with more low calorie cooking spray

Step 5

Place in the oven for 20-30 minutes, depending on how big you've made the bhajis

Step 6

About half way through, turn them over using a spatula and spray again with low calorie cooking spray

Step 7

If you want them to be crispier, grill them for a few minutes once they're cooked

Step 8

Serve and enjoy however you'd like them. Sprinkle with a bit of fresh coriander, salt and pepper if you like