Pumpkin Rocky Road Brownies

1/2 c. unsalted butter, melted
1 c. cocoa powder
1/2 c. pumpkin puree
1 c. natural cane sugar
1 large egg
1 tsp. vanilla
1/2 c. all-purpose flour
1/2 tsp. baking powder
1/4 tsp. baking soda
1 tsp. cinnamon
1/2 tsp. ginger powder
1/2 tsp. cardamom
1/2 tsp. salt
1 c. chocolate chips (divided)
2 1/4 c. mini marshmallows (divided)

Line a 9x9 pan with foil.  Melt the butter and stir in the cocoa powder.  Mix in the pumpkin puree and spices, then the sugar.  Beat in the egg and vanilla.  Sift in the flour, baking powder, baking soda, and salt.  Fold in 1/2 c. of chocolate chips and 1 c. of marshmallows.  Spread evenly into the pan and bake at 350F for 35 minutes.
Top with the rest of the mini marshmallows and chocolate chips and bake for 10 minutes more.  The brownies will be gooey, so be sure to let cool completely.  I also recommend chilling them in the freezer for easier cutting.  It's also easiest is you dip a knife in warm water before each cut.