Mix butter & chex. Set aside.

In large saucepan, combine soup, cheese, & garlic powder. Heat & stir until cheese is melted & mixture is smooth. Remove from heat. Stir in broccoli & 1 cup of chex mixture.

Spread in shallow baking dish. Sprinkle remaining chex over top.

Bake in 350°F oven for 35 minutes or until bubbly & chex are toasted.