-
Combine sliced peaches, brown sugar, cinnamon, salt, and lemon in a small bowl and refrigerate for at least 30 minutes to allow the flavors to meld.
-
To prepare the crust, combine the flour, uncooked oats, brown sugar, baking powder and salt in a medium-sized bowl
-
Cut the butter into the flour mixture (you can use a pastry blender if available)
-
Add the buttermilk until a soft dough is formed (you may not need the entire 1/2 cup)
-
Grease a cast iron pan with unsalted butter
-
Layer peach mixture at the bottom of the cast iron pan
-
Top with soft dough
-
Grill uncovered over indirect heat for 40-45 minutes, or until crust is browned and done all the way through
-
Serve with vanilla ice cream, if desired