Roasted Lemon Chicken with Potatoes

Ingredients

• 8-10 pieces chicken, skin-on and bone-in
• 1 pound baby red potatoes
• 1/2 onion, cut into large pieces
• 2 lemons, 1 sliced and 1 juiced
• 1/3 cup olive oil
• 2 cloves garlic, minced
• 1 tablespoon fresh rosemary, plus more sprigs for garnish
• 1/2 teaspoon crushed red pepper flakes
• 1 1/2 teaspoons salt, plus more to taste
• 1/2 teaspoon fresh ground pepper, plus more to taste