Crabs with Lobster Sauce

Name: Crabs with Lobster Sauce
Ingredients: 1/4 pound ground pork; 7 garlic cloves, smashed; 2 tablespoons soy sauce; 1 teaspoon sugar; 2 Chinese mushrooms, soaked, drained and sliced; 6 hard-shell crabs, such as blue crabs; 2 tablespoons oil; 5 slices ginger; 2 scallions, chopped; 2 tablespoons fermented black beans, soaked; About 2 tablespoons dry sherry; 1 teaspoon thin soy sauce; 1/2 cup pork stock; 1 tablespoon cornstarch; 2 eggs, beaten; About 1 tablespoon Chinese toasted sesame oil