Preheat oven to 400 degrees.
Cube and peel sweet potatoes. Toss with 1 tablespoon olive oil.
Spread on foil or parchment covered baking sheet. Bake for 20-25 minutes or until soft and slightly brown on the edges. Cool.
In large salad bowl, add greens, blue cheese, sliced apple, pecans, bacon and chilled sweet potatoes.
Combine all dressing ingredients in a container or mason type jar and chill. Toss salad with dressing right before serving. Start with a ¼ cup and add more dressing as desired.
