1. Combine first 6 ingredients in a large bowl,
stirring with a whisk. Gradually add oil, stirring
constantly with a whisk.
2. Remove and discard seeds from cantaloupe and
honeydew melon. Cut melons into 2-inch-wide
wedges; remove rinds. Cut melon wedges into long,
thin ribbons using a mandoline. Add melon ribbons
to dressing; toss gently to coat. Sprinkle with
mint. Serve immediately.