One of the things I was most excited about when I made a Roast Tenderloin of Beef was leftovers to make sandwiches with. I loaded up on arugula, cheddar cheese, and topped it all off with mustard horseradish sauce on wheat bread. The mustard horseradish sauce was really easy to make and was so good (especially with homemade mayo to start it off with). That was a week of delicious lunches to look forward to! What else could I have this sauce with? Hmm….
Mustard Horseradish Sauce
From Ina Garten
3/4 cup good mayonnaise
1 1/2 tablespoons Dijon mustard
1 tablespoon whole-grain mustard
1/2 tablespoon prepared horseradish
2 tablespoons sour cream
Whisk together the mayonnaise, mustards, horseradish, sour cream, and a pinch of salt in a small bowl. Serve at room temperature.