Good-Cooking - Caramel Pecan Upside Down Muffins

Ingredients

• 1/3 cup brown sugar
• 2 tablespoons butter, softened
• Pecan halves, 3 to 4 per muffin cup
• 1 cup flour
• 1 cup quick-cooking oats
• 1/4 cup granulated sugar
• 3 teaspoons baking powder
• 1/2 teaspoon salt
• 1/2 teaspoon baking soda
• 1/4 cup butter
• 1 egg
• 1 cup buttermilk