Preheat the oven to 350°F
In the bowl of a stand mixer, fitted with the paddle attachment, beat the butter and sugar on medium speed for about 2 minutes.
Add the egg and vanilla and beat until the batter is pale in color, about 2 minutes.
In a bowl whisk together the flour, cacao powder, baking powder, salt, cinnamon and cloves.
Add the dry ingredients to the butter mixture and mix on low for about 1 minute until a dough forms.
Scoop the dough into a lined baking sheet with parchment paper.
Bake for 8-10 minutes until the cookies have puffed up and are crispy on the edges and slightly soft in the center.
Remove the cookies from the oven and allow them to cool down for about 10 minutes.
Melt the chocolate chips in the microwave in 30 second intervals. Mix with a spoon after each 30 second round until the chips have fully melted.
Spoon the melted chocolate over the cookies and decorate with mini marshmallows.
I melted the mini marshmallows with a torch but you can pop them in the oven with the broiler on high for 30 seconds to a minute. Keep a watchful eye as they can burn easily.