Prime topside beef burger

Sara RECIPES

Don’t skimp on the quality of your beef and you’ll have a burger worth serving with these homemade rosemary-salted chips and mustard mayo. Ingredients For the burgers 1 red onion 200ml/7fl oz red wine vinegar 80g/3oz caster sugar 600g/lb 5oz topside beef, minced (your butcher can do this) salt and freshly ground black pepper 4 fresh white rolls 100g/3½oz sliced gherkin 8 slices cooked streaky bacon 1 Little Gem lettuce …