Beef meatballs with lemon and celeriac

This is Yotam Ottolenghi's recipe for a surprisingly light dish that has a delicate and (to me) unusual flavour. I think it's a recipe from Jerusalem. It makes about 20 meatballs, enough for four people, which you can serve with rice.

Ingredients
  • 400g of lean minced beef
  • 1 medium onion
  • 120g of breadcrumbs (I bought ready-made crumbs - I've been stung by trying to make my own in the past)
  • 20g of flat-leaf parsley, plus extra to garnish
  • 1 egg
  • ½ a teaspoon of ground allspice
  • 2 tablespoonfuls of olive oil
  • 1 teaspoon of salt
  • A generous grind or three of black pepper
  • 1 small celeriac
  • 3 cloves of garlic
  • ½ a teaspoon of ground turmeric
  • ½ a teaspoon of ground cumin
  • ½ a teaspoon of ground cinnamon
  • 1½ teaspoonfuls of fennel seeds
  • ¾ a teaspoon of ground smoked paprika
  • 500ml chicken stock
  • 3½ tablespoonsful of lemon juice
  • 60g of Greek yoghurt
     
Method
  1. Peel and finely chop the onion.
  2. Finely chop the parsley.
  3. Crack the egg into a little bowl and beat it with a fork for a bit.
  4. Put the beef, onion, breadcrumbs, parsley, egg, allspice, half a teaspoon of salt and some pepper into a large bowl.
  5. Mix together with your hands and form the mixture into little meatballs.
  6. OK, so far so good. Now chop the celeriac into little thin batons (5cm by 1.5cm says the recipe).
  7. Crush the fennel seeds slightly.
  8. Peel and crush the garlic.
  9. Heat the oil in a large frying pan (that has a lid).
  10. Sear the meatballs all over for about five minutes.
  11. Remove the meatballs from the pan.
  12. Put the celeriac, garlic and all the remaining spices into the pan. Cook on a high heat, stirring, for two minutes.
  13. Put the meatballs back in the pan, along with the stock, lemon juice, the other half-teaspoon of salt and some pepper to taste.
  14. Bring to the boil, then turn down the heat and put the lid on.
  15. Simmer for 30 minutes.
  16. Take off the lid and let it bubble away for another 10 minutes, until the sauce is quite thick.
  17. Remove the pan from the heat, and let it settle for a few minutes. Taste it to see if you want to adjust the seasoning, then serve with a dollop for yoghurt and a sprinkling of chopped parsley.