Ingredients

Gluten-free Pie Crust

¾ cup sifted oat flour

½ cup millet flour (plus more for rolling)

¼ cup + 2 tablespoons sweet rice flour

¼ cup + ½ tablespoon tapioca starch

1½ tablespoons sugar

¾ teaspoon xanthan gum

¼ teaspoon + a pinch of kosher salt

¾ cup cold unsalted butter, sliced into 12 tablespoons

4-6 tablespoons ice water

Rosemary Sugar

¼ cup sugar

1 tablespoon fresh rosemary, chopped

Filling

2 large peaches, peeled and chopped

1 tablespoon tapioca starch

½ cup mascarpone cheese

½ cup grated white chocolate

1 egg, whisked together with 1 tablespoon of water (to brush over the tops)