2 large russet potatoes
�	2 large sweet potatoes
�	1 cup corn
�	2 teaspoon prepared Dijon-style mustard
�	4 tablespoons fresh lime juice
�	3 tablespoons chopped fresh cilantro
�	1 clove garlic, minced
�	6 tablespoons canola oil
�	1 teaspoon salt
�	1/4 teaspoon ground black pepper
�	1 cucumber, halved lengthwise and chopped
�	1/2 red onion, thinly sliced
�	1/4 cup finely chopped peanuts
Cook potatoes in microwave.  Cool then peel. 
In  a large bowl, whisk together mustard, lime juice, cilantro, and garlic. Slowly whisk in oil. Mix in salt and black pepper. 
Cut cooled potatoes into 1 /2 inch cubes, and add to dressing along with cucumber, and red onion. Toss well. Serve at room temperature or chilled. Toss the peanuts in just before serving.