static void DeleteRelatedEntities <T>(T entity, EFRecipesEntities context) where T : EntityObject
{
var entities = ((IEntityWithRelationships)entity).RelationshipManager.GetAllRelatedEnds().SelectMany(e => e.CreateSourceQuery().OfType <EntityObject>()).ToList();
foreach (var child in entities)
{
context.DeleteObject(child);
}
context.SaveChanges();
}