In a thick bottomed pan melt half of the butter, add the onions and garlic and cook for about one minute.
25g of butter
1/2 onion
2 garlic cloves
2
Remove the stalks from the spinach and add to the onions and garlic, stir well before adding the sage. Season with nutmeg and a little salt and pepper.
250g of spinach
8 sage leaves
nutmeg
sea salt to season
black pepper
3
Cook until the spinach is well wilted about 1-2 minutes and remove from the heat. Drain well to remove the water and place in a food processor and puree.
4
Meanwhile cook the spaghetti in plenty of boiling salted water until cooked but still firm, drain, stir in the remaining butter and check the seasoning.
500g of spaghetti
5
Stir in the spinach and serve immediately with plenty of grated parmesan