1 tsp garlic powder
1 large gherkin, finely chopped
squeeze lemon juice
2 tbsp tomato ketchup
100驳/3陆辞锄 mayonnaise
flaked sea salt and freshly ground black pepper
陆 tsp chipotle paste or other hot sauce
800g/1lb 12oz chuck steak, minced
50驳/1戮辞锄 bone marrow, finely diced