1/4 cup (60 milliliters) cold, cubed, unsalted butter
500 grams fresh linguine noodles (125 g/person)
Salt and pepper to taste
Fresh basil for garnish
Peel and devein prawns and reserve shells. Dice onion and garlic. Place two teaspoons (ten milliliters) olive oil in a pot over medium heat and sauté onions and garlic until translucent, but do not colour. Add prawn shells and stir. Season as desired. Pour in red wine and allow to reduce by half – about five to ten minutes.
Add puréed tomatoes, basil leaf, salt, pepper, and remaining olive oil to the sauce and cook for an additional 30 minutes.
Strain sauce through a fine mesh strainer into a new pot. Continue to simmer lightly over medium-low heat for an additional 30-45 minutes.
Prepare linguine according to package instructions.
Add prawns to a heated pan with canola oil. Season with salt and pepper. Ladle in sauce to coat prawns. Add unsalted butter. Add cooked linguine to pan and toss.
Plate linguine and top with prawns. Garnish with fresh basil. Finish with pepper and olive oil as desired.