Easy Gluten-Free Macaroni and Cheese

Ingredients (9)

• + 10 ounces gluten-free elbow pasta add to pantry
• + ¼ cup butter add to pantry
• + 1 ¼ teaspoons salt add to pantry
• + ¾ teaspoon mustard powder add to pantry
• + 4 cups milk add to pantry
• ✓ ¼ cup cornstarch
• + 4 cups shredded Cheddar cheese, divided add to pantry
• + 2 gluten-free bread slices, toasted and broken into crumbs add to pantry
• + ½ teaspoon paprika add to pantry