Cajun Crab Soup

Name: Cajun Crab Soup
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: Southern, Cajun And Creole, American
Ingredients: 0.5 cup unsalted butter; 1 onion, chopped; 2 cloves garlic, minced; 0.25 cup all-purpose flour; 2 cups clam juice; 2 cups chicken broth; 1 (10 ounce) package frozen white corn; 1 teaspoon salt; 0.5 teaspoon ground white pepper; 0.25 teaspoon dried thyme; 0.25 teaspoon ground cayenne pepper; 2 cups heavy cream; 1 pound lump crabmeat, drained; 4 green onions, chopped