Mississippi Mud Brownies {AKA Frosted Marshmallow Brownies}

INGREDIENTS

1/2 cup

all-purpose flour

1/2 cup

cocoa powder

3/4 cup

granulated sugar

1/3 cup

packed light-brown sugar

1/4 tsp

salt

1/2 cup

butter (, melted and cooled slightly (I used salted))

large eggs

1 tsp

vanilla extract

3/4 cup

chopped pecans or almonds (, divided)

2 1/2 cups

miniature marshmallows

1/4 cup

salted butter

1/4 cup

milk

1/4 cup

cocoa powder

1/2 tsp

vanilla extract

2 cups

powdered sugar