Prue Leith served up a tasty burger sauce Prue Leith’s Cotswold Kitchen.

The ingredients are: 1 tbsp mayonnaise, tbsp tomato ketchup, tbsp English Mustard, tbsp chopped shallots, tbsp chopped gherkin, tsp chilli and lemon juice.

See recipes by Prue in her book titled: Life’s Too Short to Stuff a Mushroom: Really good food without the fuss – foolproof recipes, shortcuts and hacks available from Amazon now.