Skillet Onion Bread

Ingredients

• 1 tablespoon butter, divided
• 1 large sweet onion, halved and sliced
• 1/2 teaspoon dried oregano
• 1 tablespoon jalapeno pepper, seeded and minced (optional)
• 1 1/2 cups flour
• 4 teaspoons baking powder
• 1 teaspoon salt
• 1 1/2 cups milk
• 1 egg, slightly beaten
• 3/4 cup sharp cheddar cheese, shredded, divided
• 1 tablespoon poppy seed