Blitz the onion, oil, Worcester sauce and vinegar
Then transfer to a pan and simmer for 2 minutes
Add the grated beetroot and sugar and simmer for 15 mins
Add seasoning to taste, then blend till completely smooth.
Leave to cool down then transfer into bottles or jars – keep in the fridge will last up to 2 weeks.
We served the ketchup up with some chunky sweet potato wedges.