The crab cakes:

• 1 pound (about 2½ cups ) flaked crab meat, picked over
• 1 small onion, finely chopped (about ¾ cup)
• 1 teaspoon dry mustard
• ¼ teaspoon cayenne pepper
• ¼ cup homemade Mayonnaise or Hellman's
• 1 egg, beaten with 3 tablespoons heavy cream
• ¼ cup fresh bread or cracker crumbs

For frying:

• Vegetable oil
• 1 cup dried bread crumbs