01 -
Turn your oven on to 350°F. Line a 9x9 pan with some parchment.
02 -
Melt 1 1/2 cups of the chocolate chips with the butter. Mix in the sugar, vanilla, and liqueur.
03 -
Beat the eggs until frothy, then mix into the chocolatey blend.
04 -
Stir in the flour, cocoa, baking powder, and salt. Add in the rest of the chocolate chips.
05 -
Pour half the batter into the pan and bake for 20 minutes.
06 -
Layer the marshmallows on top, then broil for 1-3 minutes to get that nice golden touch.
07 -
Spread the remaining batter on top, sprinkle on the chocolate chunks, and bake another 20 minutes.
08 -
Let it sit for about 20 minutes before cutting up.