Definition of «to add the sauce»

"To add the sauce" means to enhance or improve something by adding an extra element or making it more exciting or interesting.

Just freeze the shells with the filling and then add the sauce when you are ready to bake. (forkknifeswoon.com)
Let cool to room temp before adding sauce mixture. (hotsaucewillies.com)
In a medium sauce pan add the sauce ingredients; cream of chicken, milk and salsa and cook until warm. (farmwifecooks.com)
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