Mexican-Style Cheese Cornbread

INGREDIENTS

• 1 teaspoon butter or 1 teaspoon margarine, melted
• 3 tablespoons butter or 3 tablespoons margarine, melted
• 1 cup cornmeal
• 1 cup all-purpose flour
• 2 tablespoons baking powder
• 3/4 teaspoon salt
• 1/2 teaspoon baking soda
• 1 cup buttermilk or 1 cup plain yogurt
• 1 large egg
• 3 tablespoons sugar
• 1 cup frozen corn, thawed
• 1/2 cup shredded mild cheddar cheese
• 1/3 cup thinly sliced green onion