[Ingredients] 1 tsp = 5 ml, 1 Tbsp = 15 ml, 1 cup = 240 ml
350 g(1.5 cup) unsalted butter(softened)
370 g (3 cups) powdered sugar (shifted) (icing sugar or confectioners sugar)
*There was a typo in the video. It's not 400 g but 370 g.
1 Tbsp (7 g) unsweetened cocoa powder
2 Tbsp (12 g) instant coffee powder instant coffee
90 ml hot water
1/4 tsp salt ( *Optional but recommended, If you use salted butter, skip it.)
1 tsp vanilla extract ( *Optional but recommended.)
1~2 Tbsp milk or water (*Add little by little if necessary.)
