Rosée Sauce (Fondue Sauce)

Instructions

1. 1

   In a small pot over medium-high heat, soften the onion in the oil. Season with salt and pepper. Add the tomato paste, vinegar and sugar. Continue cooking for 3 minutes, stirring frequently. Let cool.

2. 2

   Whisk in the mayonnaise. Adjust the seasoning. Refrigerate until ready to serve.