Thanks to a tip from a guest at my guesthouse, I now know of another source for gluten free treats in Chiang Mai, Thailand!
Butter is Better Bakery (great name)
This is a slice of Almond Cream Pie from their mini Site within the Rimping supermarket that I happened upon by accident. Very good! Not overwhelmingly sweet, and really just right.
I’m looking forward to venturing out to their main location near the Night Bazaar and testing their gluten free bread!