Preheat grill to medium heat.
Roll out pizza dough, using flour.
Brush pizza crust with vegetable oil and place directly on the grill. Cook 2-3 minutes or until it starts to bubble.
Brush the uncooked side of crust with oil and flip to grill it.
Brush butter onto crust & sprinkle cinnamon sugar mixture. Add fresh peach, close lid and allow to cook for 2 minutes or until the bottom of the crust is baked through.
Mix icing ingredients, top & serve.