Cream together the butter and sugar in a stand mixer until fluffy.

Add the eggs and mix until combined.

Add the salt, baking powder & xantham gum and mix until just combined. Add the flour, 1/2 cup at a time until all 3 cups of rice flour blend have been incorporated.

Add the white chocolate chips and candied cherries and mix in by hand.

Lay out a piece of plastic wrap on a flat working surface and place half of the dough on it. Form the dough into a log, wrap in the plastic wrap, and freeze until firm.

Repeat with the other half of dough.

Preheat your oven to 350F.

Slice the chilled dough into 1/4" slices and place on a baking sheet.

Bake for 8-10 minutes, or until the bottom just barely starts to turn golden.

The cookie will still be white and will be a bit soft, but will set up as it cools.