Preheat your oven to 375°F (190°C) and grease a pie plate with butter.

Melt 1.5 tablespoons of butter in a skillet over medium heat. Sauté chopped onion for 4 minutes until golden, then add minced garlic and cook for an additional 2-3 minutes.

In a mixing bowl, combine sautéed onion and garlic with corn, milk, 1.5 cups of cheddar cheese, 0.5 cup of panko, salt, pepper, and chives. Mix thoroughly and incorporate eggs until smooth.

Pour the mixture into the prepared pie plate, spreading it evenly.

Combine the remaining melted butter with panko and a sprinkle of cheddar; mix and sprinkle the topping evenly over the pie.

Bake in the preheated oven for approximately 35 minutes until puffed and golden brown.

Let cool for 10-15 minutes on a wire rack before serving.