Preheat your oven to 375°F (190°C).

Blanch broccoli in boiling salted water for 2 minutes. Drain and set aside.

In a saucepan, combine heavy cream, garlic powder, salt, and pepper over medium heat. Stir until warmed, then mix in half the cheddar until melted.

In a bowl, combine blanched broccoli with the cheese sauce; fold in remaining cheddar.

Transfer to a greased baking dish and top with panko breadcrumbs.

Bake for 25-30 minutes until bubbly and golden brown.