Melt the butter and chocolate chips then whisk in the sugar, eggs, egg yolks, and the dry ingredients.
Pour the brownie batter into a lined 8x8 baking pan until even.
Sprinkle the chopped almonds over the top of the brownie batter then bake at 350 F for 30 minutes.
Take the pan out of the oven and sprinkle the mini marshmallows over the top. Bake for another 1-2 minutes then cool.
Drizzle with melted chocolate and top with more almonds and marshmallows and enjoy!