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Calorie count 116

The idea for this tangy autumn soup came from my friend Alex Renton, who made it for me one chilly lunchtime at his home in Edinburgh.

I loved it so much that I made it for chef Allegra McEvedy, who asked to use it in her Guardian column, and now it’s turning up here, a triumph of recipe recycling.

This is the fast day version – no butter for sweating the onion, a swirl of yoghurt instead of cream – but it’s no less tasty than the original.

It freezes like a dream, so you could double the quantities and have it handy as the nights draw in.

Ingredients

Serves four:

500g raw beetroot

2 medium onions, roughly chopped

1 tbsp olive oil

2 Bramley apples, peeled, quartered and cored with a squeeze of lemon to prevent discolouration

1 1/2 litres light chicken or vegetable stock

2 star anise

snipped chives

salt and pepper

1 tsp horseradish sauce

1 tbsp natural low-fat yoghurt

Method

1 Preheat the oven to 200°C/400°F.

2 Place the beetroot in 1cm water in a baking tray.

3 Cook for an hour, or until a knife meets with little resistance, then take them out and run under cold water for a couple of minutes until cool enough to peel.

4 Heat the oil in a thick-bottomed pan.

5 Add onions and sweat over a medium heat with the lid on until soft but not coloured.

6 Add apple quarters.

7 Roughly chop the peeled beetroots and add to the pan.

8 Pour on the stock, add star anise and seasoning and simmer for 15 minutes.

9 Remove star anise, then blitz the soup with a hand blender until puréed.

10 Serve with snipped chives and a swirl of yoghurt mixed with the horseradish sauce.