Broccoli Chowder With Cheddar Toasts

INGREDIENTS

• Kosher salt and freshly ground pepper
• 2 strips bacon, thinly sliced
• 2 cloves garlic, smashed
• 1 tablespoon dijon mustard
• 1/2 teaspoon celery seed
• 4 ounces cheddar cheese, cut into 8 thin slices
• 4 small red-skinned potatoes (about 6 ounces), quartered
• 1/2 yellow onion, chopped (about 1 cup)
• 2 tablespoons unsalted butter
• 1 baguette, sliced into 8 1/4-inch-thick pieces
• 1/2 head broccoli (about 10 ounces), broken into florets, stem peeled and sliced
• 2 cups low-sodium chicken broth
• 2 cups milk
• 2 tablespoons all-purpose flour