2) In a large frying pan, heat the olive oil over a medium heat. Add the garlic and saute until light brown and fragrant. It's important not to burn the garlic or it will become bitter. Remove and discard the browned garlic.
3) Add the chilli flakes and saute for 1 minute. Carefully add the reserved pasta water and stir to combine. Place the spaghetti into the pan and mix well for 1 minute. Remove the pan from the heat, scatter with fresh herbs and serve.