01 -
Microwave the butter and chocolate in short intervals, stirring often, until smooth. Let them cool for 15 minutes.
02 -
Take a bowl and combine flour, cocoa powder, salt, and baking powder.
03 -
Beat the eggs, brown sugar, and vanilla until combined. Slowly mix in the melted chocolate, followed by the dry ingredients in portions.
04 -
Cover the dough and chill it in the fridge for about an hour. If you're leaving it in longer than 4 hours, let it sit at room temperature for half an hour before handling.
05 -
Heat your oven to 325°F and line cookie sheets with wax or parchment paper.
06 -
Scoop the dough and place spoonfuls about 2 inches apart on the lined sheets.
07 -
Bake for about 10–12 minutes, until the tops look cracked.
08 -
Gently press half a marshmallow onto the top of each cookie as soon as they're out of the oven.
09 -
Pop the cookies back into the oven for another 3 minutes until the marshmallows soften.
10 -
Allow them to sit on the tray for 5 minutes, then carefully transfer to a cooling rack.
11 -
Blend all icing ingredients smoothly. Place your rack over a tray and drizzle icing on top of the marshmallows. Quickly sprinkle decorations before it sets.
12 -
Allow the icing to harden for at least 30 minutes, or up to an hour.