Devils on horseback, are a hot appetizer or savoury small dish.
Recipes vary but in general they are a variation on angels on horseback, made by replacing oysters with dried fruit. The majority of recipes contain a pitted prune (though dates are sometimes used) stuffed with mango chutney and wrapped in bacon. This is then baked in the oven and quite often served on toast, with watercress.
Other recipes stuff the prune with cheese, almonds, smoked oysters or other things in place of the mango chutney. Other versions again use liver pieces in place of the prunes.
Devils on horseback are commonly served as part of a Christmas feast.