Want a creamy, cheesy Mac & Cheese, but don’t have time to fuss around with a roux? You certainly won’t rue the day you try 4-Ingredient Mac & Cheese. The good news is you’re likely to have these ingredients already lying around, making it super easy to make on the fly. The other good news 4-Ingredient Mac & Cheese is a creamy, sharp dish that everyone loves. In under 30 minutes, you’ll have a cheesy dinnertime classic ready to eat.