A question about a recipe: Potato Salad with Arugula and Dijon Vinaigrette

I have a question about the recipe "Potato Salad with Arugula and Dijon Vinaigrette" from merrill.

Recipe question for: Potato Salad With Arugula & Dijon Vinaigrette

SKK December 26, 2011

Arugula has a peppery flavor. I sometimes replace arugula with watercress and more often with spinach.

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