Make-Ahead Creamy Macaroni and Cheese

Ingredients

• 4 slices white bread
• 25 ml 0.25 cup parmesan cheese
• 1 garlic clove
• 8 Tbsps unsalted butter
• some salt and pepper
• 453.59 g 1 pound elbow macaroni
• 6 Tbsps flour
• 1 tsp dry mustard powder
• 1/8 tsps cayenne pepper
• 1.06 l 4.5 cups low sodium chicken broth
• 357 ml 1.5 cups heavy cream
• 528 g 4 cups shredded colby cheese
• 226 g 2 cups shredded cheddar cheese