1. Over medium heat, melt 1/4 cup of salted butter. Once butter is melted, add 250 millilitres of 35% cream.
2. Next, season with pepper and salt and remove leaves from 2 sprigs of thyme, adding them to the cream and butter.
3. Stir in 150 grams of grated parmigiano-reggiano, until smooth.
4. Add zest of half a lemon. Voila – your sauce is finished!
5. Add your favourite al dente short pasta to the sauce and enjoy!