In the bowl of a stand mixer fitted with the paddle attachment, add the gluten-free bread flour, almond flour, granulated sugar, milk powder, instant yeast, salt and baking powder. Mix to combine.
With the mixer running on low, slowly add the water, milk, eggs and melted butter. Increase the speed to medium and mix for 3 minutes. The dough will resemble thick cookie dough, this is normal.
Using an oiled rubber spatula, scrape down the bottom and sides of the bowl. Cover the bowl tightly with plastic wrap and refrigerate for20 minutes. (Refrigerating the dough makes it easier to roll out.)
Line 2 large baking sheets with parchment paper or silicone baking mats.
On a lightly floured surface, scoop out ½ of the dough. Roll into a 12-inch circle. Repeat with the other ½ of the dough. Brush the top of the dough with melted butter, about 2 tablespoons per circle.(You’ll brush the rest of the melted butter on the rolls when they’re done baking.)
Use a pizza cutter to slice each circle into 12 equal wedges. (They might vary in size a bit, but that’s fine.) Roll up each wedge, starting at the wide end, into a crescent shape. Place the rolls point side down, 2-inchesapart, on the prepared baking sheets. Curve the ends to form crescents.
Cover with oiled plastic wrap and let rise in a warm place for 45-60 minutes.
Preheat the oven to 350°F.
Bake for 22-26 minutes, until the edges begin to turn golden brown. Remove from the oven and immediately brush the rolls with melted butter. Best served warm.