01 -
Pour the hot fudge frosting all over the warm brownies and quickly spread it out with an offset spatula so it covers. Let it chill out for about an hour before you slice.
02 -
Melt the butter, milk, and sugar together in a saucepan over a medium flame. Once it’s bubbling, let it go for a whole minute. Take it off the heat, dump in the chocolate chips and salt, then whisk like crazy until smooth.
03 -
Smooth batter evenly into your pan and bake in the middle rack for 30 minutes. Leave it on the counter to cool till it’s just a bit warm—about 20 to 30 minutes—since you want the frosting to go on warm brownies.
04 -
On low, add a scoop of the dry mix to the wet, then pour in half the milk. Add more dry mix, then the last of the milk, and finally what's left of the dry stuff. Don’t overmix, just go until barely blended.
05 -
Whisk together your flour, cocoa, and salt in another bowl. Just toss them around till mixed.
06 -
Crack in your eggs and splash in vanilla. Mix until it all comes together — give the bowl a scrape if you need to.
07 -
Beat together softened butter with all the sugar using a mixer till it’s light and fluffy.
08 -
Set your oven to 350 degrees F. Line a 9×13 pan with parchment that hangs over the sides or just spray it well—whichever you like.