Place shallots, garlic and herbs in a bowl. Add the brown sauce and mix well. Combine the pork and beef mince and mix well before adding the shallot mix. Add the beaten egg, breadcrumbs and seasoning. Mix well. Chill for 1hr then mould into patties. Cook on barbecue until browned and cooked through.
Recipe by appetite magazine at https://www.appetitemag.co.uk/sizzle/