01 -
Set your oven to 350°F (175°C) and put paper liners in your muffin pan.
02 -
Slowly melt your butter in a pot over low flame. Take it off the heat and mix in sugar until everything looks smooth.
03 -
Drop in eggs one after another while mixing, then pour in the vanilla and stir well.
04 -
In another bowl, stir flour, cocoa, salt, and coffee powder. Slowly add this mix to your wet ingredients, stirring just enough to blend.
05 -
Add milk and mix until your batter looks even and smooth.
06 -
Scoop batter into each paper liner, making them about 2/3 full.
07 -
Let them bake for 18-20 minutes. They're done when you stick a toothpick in and it comes out clean. Let them cool all the way before you add frosting.
08 -
Whip the soft butter in a big bowl till it's fluffy. Slowly add sugar while beating. Mix in your coffee mixture and 1 tablespoon milk. Add more milk if it's too thick.
09 -
Put your coffee frosting on the cool cupcakes and dig in.