Grilled Peaches, Gorgonzola and Dandelion Greens

INGREDIENTS

• 1/3 cup balsamic vinegar
• 1/3 cup pure olive oil
• 1/3 cup extra-virgin olive oil
• Kosher salt and freshly ground pepper, to taste
• 2 firm but ripe peaches, preferably white peaches, halved and pitted
• Kosher salt and coarsely ground pepper, to taste
• 2 Tbs. extra-virgin olive oil, plus more for drizzling
• 2 Tbs. balsamic vinegar
• 1 small red onion, sliced crosswise 1/4 inch thick
• 4 cups baby dandelion greens
• 1/4 cup fresh mint leaves
• 4 Tbs. crumbled Gorgonzola
• cheese