Ingredients
Method
1.Heat butter and dive oil in saucepan over medium-high heat. Add eschalot and pancetta. Cook 5 minutes, until beginning to colour.
2.Add flour. Cook 1 minute, stirring regularly. Add stock. Simmer 3 minutes, then add lettuce. Cover with lid. Cook 3 minutes. Remove lid. Add peas, cook further 5 minutes. Stir through mint. Season to taste.