Quoted from http://alldayidreamaboutfood.com/2011/02/homemade-thin-mints-low-carb-and-gluten-free.html:
Homemade Thin Mints
Cookies:
1 3/4 cups almond flour
1/3 cup cocao powder
3 tbsp granulated erythritol
1 tsp baking powder
1/4 tsp salt
1 large egg, slightly beaten
2 tbsp butter, melted
1/2 tsp vanilla extract
10 drops steviaCoating:
1 tbsp butter
2 3.5oz Lindt chocolate bars (85% cacao) (or 7-8oz of any sugar-free chocolate chips)
1 tsp peppermint extract