Sift flour, baking powder, and cinnamon together onto clean working surface; shape into ring.
Place egg, pecans, butter, sugar, sherry, and 1/2 cup melted chocolate in center.
Blend mixture with pastry scrapers until smooth dough is formed.
Roll dough on floured surface to 1/8 inch thick.
Cut into circles with 1 1/2 inch cookie cutter Press circles into miniature cupcake pans; form very shallow shell.
Bake in preheated 350°F oven about 20 to 22 minutes.
Cool on wire rack.
Fill centers with remaining chocolate.
Insert almond sliver in each dab of chocolate.
Chill 5 minutes to set chocolate