Heat gas or charcoal grill.
In large bowl, gently stir together peaches, 3/4 cup sugar, the flour, cinnamon, vanilla and table salt. Let stand 10 minutes to allow mixture to thicken.
Transfer peach mixture into ungreased 8-inch square foil pan; spread evenly. Pour 1/4 cup melted butter evenly over peach mixture.
Place pan on grill over medium heat. Cover grill; cook 20 to 30 minutes or until peaches are tender.
Once peaches are soft, separate dough into biscuits; arrange on peach mixture. (If all biscuits don’t fit, bake remaining biscuits as directed on can for a later use.) Brush tops of biscuits with 1 tablespoon melted butter; sprinkle with 1 teaspoon granulated sugar.
Cover grill; cook 5 to 10 minutes or until biscuits are golden brown. Carefully remove pan from grill. Cool at least 20 minutes before serving.
To make Sauce, place caramel sauce in microwaveable bowl. Microwave uncovered on High 30 to 40 seconds or just until warm. Stir in sea salt. Serve warm cobbler with sauce.