Roasted potatoes with mustard dressing adapted from Cooking New American

1/3 cup dijon mustard
1/4 cup olive oil
2 tablespoons (or more) balsamic vinegar
2 minced garlic cloves
Chopped rosemary or parsley (1 tspn)
1 tablespoon kosher salt
1/2 teaspoon pepper
2 to 3 pounds potatoes,1 inch dice

Heat oven to 400 degrees. Whisk mustard, olive oil, vinegar, garlic, rosemary, salt & pepper. Add potatoes and toss to coat. Spread in a single layear on baking pan in a 400 degree oven for 50 to 55 minutes. Toss several times with spatula to brown evenly.