Crab Cakes with meat

4 tablespoons extra virgin olive oil 1/2 small onion , finely chopped 1 garlic clove , chopped salt black pepper 2 tablespoons grainy mustard 3/4 cup chicken[...]

1 lb backfin crab meat (artificial if desired) 2 cups cracker meal or 2 cups plain breadcrumbs 1 egg 1 tablespoon unsalted butter 2 tablespoons all-purpose[...]