Cajun Sloppy Joes | America's Test Kitchen

Ingredients

• 2 tablespoons vegetable oil
• 1 onion, chopped fine
• Salt and pepper
• 1 tablespoon Cajun seasoning
• 1/8 teaspoon cayenne pepper
• 1 pound 85 percent lean ground beef
• 1 cup tomato puree
• 1/4 cup ketchup
• 4 hamburger buns