1. Preheat oven to 400°. Place baking sheet in oven.
2. Combine first 5 ingredients in a small bowl, stirring well. Cover and chill.
3. Place potato slices on paper towels; pat dry. Arrange half of potato slices in a single layer on preheated baking sheet coated with cooking spray. Sprinkle with 1/4 teaspoon salt. Bake at 400° for 10 minutes. Turn potato slices over; bake an additional 5 minutes or until golden. Repeat procedure with remaining potatoes and remaining 1/4 teaspoon salt. Serve immediately with blue cheese mixture.