1/4 cup oil
1/2 tsp salt
1/4 cup sugar
1 tsp xanthan gum
1 cup brown rice flour
1 tsp vanilla extract
1/3 cup unsweetened cocoa powder
12 ounces broken milk chocolate bars (for chocolate coating)
2 tbsp confectioner's sugar (for chocolate coating)
1/8 tsp baking soda
1/2 tsp mint extract (for chocolate coating)
Preheat the oven to 350°F. Lightly grease a cookie sheet.
In a medium-size bowl, combine the oil and sugar. Beat well. Add the brown rice flour and beat well. Scrape down the sides of the mixing bowl at least once during mixing. Add the remaining batter ingredients and beat well.
Continue beating until the dough comes together; it will be soft and oily to the touch.
Roll out the dough to 1⁄8-inch thickness. Use a 11⁄2-inch round cookie cutter to cut the cookies and place them on the prepared pan. Bake the cookies for 8 to 9 minutes, until the tops are dry. Let cool well before coating; the cookies should be crisp.
For the chocolate coating, I suggest making two batches of coating (using half of the ingredients at a time) so that it does not harden before you have used it all. Place half the chocolate into a bowl in microwave on HIGH for 1 to 2 mins, until melted.
Stir in half the sugar and half the mint extract. Stir until creamy. Dip the cookies into the chocolate and place on waxed paper to cool. The coating should be as thin as possible to mimic the original.