French Onion Soup Mac and Cheese Move over regular mac and cheese french onion mac is next level and it’s going to be stealing the show this season. This recipe might be our best one yet since we started this series with our favorite french onion recipes. This is super easy and beyond deliciously creamy. We used two pans instead of one like our last one, but it’s totally worth the extra clean up! 3 tablespoons butter 3 tablespoons flour 1 can French onion soup 1 1/2 c milk 1/2 c heavy cream Salt