Broccoli Casserole

Broccoli Casserole 1 pkg. (16 oz.) frozen broccoli florets 1-1/2 tsp. salt, divided 1 tsp. sugar 1/4 cup butter, divided 1 Tbsp. all-purpose flour 1/4 tsp. pepper 2 cups sour cream 1 cup packaged cornflake crumbs 2 cups (8 oz.) Fine Cut Shredded Mild Cheddar Cheese or Traditional Cut Shredded Mild Cheddar Cheese Cook frozen broccoli in simmering water with 1 teaspoon salt and sugar 2 minutes or until thawed and warm. Drain; set aside. Melt 2 tablespoons butter in medium saucepan over medium heat. Add flour, remaining salt and pepper; cook 1 minute, stirring constantly. Stir in sour cream; remove from heat and set aside. Melt remaining butter and toss with cornflake crumbs. Layer half of the broccoli, half of the sauce, 1 cup cheese and half of the crumb mixture in a 1-1/2 quart baking dish. Repeat layering once more with remaining ingredients. Bake in preheated 400°F oven 25 minutes.