Put the tablespoon of butter in a saucepan.
Place the saucepan over medium low heat.
Add condensed milk.
Add cocoa powder and mix with a wooden spoon for about a minute.
Add Almond powder and stir constantly until the mixture thickens. It took me about 20 minutes of stirring to get the mixture to thicken.
Once the mixture thickens and takes a while to fall off the spoon, remove it from the heat.
Place on a slightly greased plate and refrigerate for about 30 minutes.
Grease your hands with butter.
Use an ice cream scoop or just a spoon to scoop a small piece of the mixture at the time.
Roll each piece into a small ball.
Place the ball in cocoa powder and coat it well or use any of your favorite topping.
Place the Brigadeiros in mini baking cups.
Enjoy.