Summer Corn And Cod Chowder

Ingredients

• 3 slices center-cut bacon, halved crosswise
• 8 scallions, thinly sliced, whites and greens separated
• 1 1/2 teaspoons finely chopped garlic
• 2 tablespoons all-purpose flour
• 2 medium Yukon gold potatoes, peeled and cut in 1/2-inch dice
• 2 cups 2 percent milk
• 2 cups reduced-sodium chicken broth
• 2 teaspoons finely chopped fresh thyme
• 3/4 teaspoon kosher salt
• 1/4 teaspoon freshly ground black pepper
• 3/4 pound cod, skin removed, chopped
• 2 1/2 cups cups fresh or frozen corn kernels
• 1/4 cup fat-free half-and-half