for the dutch baby
5 tablespoons butter, divided
1 large peach, sliced thin
3 large eggs, room temperature
1/2 cup plus 1 tablespoon all-purpose flour
3 tablespoons sugar
1 tablespoon bourbon
2 teaspoons vanilla extract
1/2 teaspoon salt
pinch cinnamon
for the toppings
1/4 cup granola
3 scoops vanilla ice cream
powdered sugar, for dusting