Cajun Crab Au Gratin Recipe

Ingredients

• 2 egg yolks
• 12 fluid ounces heavy cream
• 1/4 cup butter
• 1 large yellow onion, minced
• 1 stalk celery, minced
• 1 1/2 teaspoons salt
• 1/2 teaspoon cayenne pepper
• 1 teaspoon garlic powder
• 1 teaspoon creole seasoning
• 1/4 cup all-purpose flour
• 1/2 cup shredded cheddar cheese
• 1/2 cup shredded American cheese
• 1 lb cooked crabmeat
• 1 cup shredded sharp cheddar cheese
• 1 bunch green onion