In a saucepan set over medium heat, melt the butter. Over the course of approximately five minutes, we are going to transform the butter into “buerre noisette,” also known as brown butter. First it will melt, then it will foam up and turn a blond color, then the milk solids will turn brown.
Once the butter is browned, remove the pan from the heat and carefully add the bourbon from a distance, as it will make the brown butter sputter and foam up.
Add the brown sugar and return the pan to the heat. Give it a stir and bump the heat up to medium high. Let the brown sugar dissolve and the sauce boil for 5 minutes.
In the meantime, begin to heat a grill or grill pan over medium high heat.
Slice all the peaches in half and remove the pits.
Place all of the peaches, cut side down, into the sauce for 30 to 60 seconds just to coat the surfaces in sauce.
Move the peaches to the grill, and grill them for 2 to 3 minutes on each side, until the outside begins to caramelize and the peaches soften.
Serve the peaches with whipped cream on the side, drizzle with the Bourbon Brown Butter Sauce and sprinkle with the pecans. Keep in mind, if the sauce hardens up as it cools, you can simply bring it to a boil again to liquify and drizzle, as needed. Enjoy!