Tex Mex Burgers | America's Test Kitchen

Ingredients

• 1 1/2 pounds 85 percent lean ground beef , broken into pieces
• 2 teaspoons minced canned chipotle chiles in adobo
• 1/2 teaspoon ground cumin
• Salt and pepper
• 1 tablespoon vegetable oil
• 4 thick slices pepper Jack cheese
• 1 small red onion , sliced thin
• 1 poblano chile , seeded and sliced thin (see note)
• 1 teaspoon chili powder
• 4 hamburger rolls , split