• In a medium saucepan over medium heat, melt butter. Sprinkle cornstarch overtop and cook, whisking constantly, for 2 to 3 minutes, until foamy and simmering (do not let it brown).
• Add chicken broth; cook, whisking constantly, for 3 to 4 minutes, until sauce thickens and starts to simmer. Remove from heat. Season to taste with salt and pepper.
• Pasta: In a large bowl, combine white sauce and cream. Add Colby, and Sharp Cheddar cheeses; stir until melted and smooth. Set aside.
• Fill a large stockpot with water and bring to a boil over high heat. Cook macaroni for 5 to 6 minutes, stirring occasionally, until just beginning to get soft (the pasta should be starting to get tender but have a firm bite). Drain and rinse with cold water to cool quickly. Set aside.

MAKE IT NOW

• Preheat oven to 375°F. Return macaroni to stockpot, add cheese sauce and gently mix together. Season to taste with salt and pepper. Transfer to a 9- by 9-inch baking dish. Bake in preheated oven for 30-35 minutes, until golden on top and bubbly on the inside. Let cool for 10 minutes, then serve.

MAKE IT A FREEZER MEAL

• Let cheese sauce cool to room temperature. Return cooled macaroni to stockpot, add sauce and gently mix together. Season to taste with salt and pepper. Transfer to a 9-by-9 -inch baking dish. Wrap baking dish tightly with plastic wrap, pressing down gently to remove air. Cover with foil. Label and place in freezer.

THAW AND COOK

• Place baking dish in refrigerator for around 24 hours to thaw. Preheat oven to 375°F. Remove foil and plastic wrap. Bake in preheated oven for 45-55 minutes or until golden on top and bubbly on the inside. Let cool for 10 minutes, then serve.