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Put the pine nuts, Parmesan, garlic, oils, kale and lemon juice in a food processor and whizz to a paste. Season to taste. Stir through hot pasta to serve, topping with extra Parmesan and olive oil, if you like.
To store, put in a container or jar, cover the surface with a little more olive oil and keep in the fridge for a week, or freeze for up to a month.