Penne with Courgettes and Lemon - Cooking like a Boss

100g 0.1kg 0.22lb 3.53oz penne	boil	drain	add	season
3 tbsp 0.045 l 45 ml 9 tsp 0.19 cup 0.079 pint double cream
1.25 tbsp 0.019 l 18.8 ml 3.75 tsp 0.079 cup 0.033 pint lemon juice
200g ¹⁄₅kg 0.441lb 7.05oz courgettes	grate coursely	stir fry
1 clove garlic
25g 0.025kg 0.055lb 0.882oz butter
2 tbsp 0.03 l 30 ml 6 tsp 0.127 cup 0.053 pint fresh parsley	chopped