Then, in a small mixing bowl, beat the room temp butter with a hand mixer until smooth.
Next, add in the cinnamon sugar, granulated sugar, and salt and mix again until completely combined.
Then, use a silicone brush to brush both sides of the peach halves with the canola oil.
Transfer the prepared peach halves to the hot grill, with the cut side facing down. If you don’t want this part to get too messy then use some of these handy copper grill mats.
Cook for about 5 minutes, then flip the peaches and add even amounts of cinnamon butter to each one, and continue to grill until the butter melts completely.
Finally, remove the peaches from the grill and serve immediately with vanilla ice cream or whipped cream and your favorite garnishes.