I use it to make Brigadeiro, a Brazilian treat similar to a truffle.
1 (14 ounce) can sweetened condensed milk
2 tablespoons unsalted butter
2 tablespoons Nesquik
Sprinkles/crushed candies
In a heavy saucepan mix milk, butter, and Nesquik ingredients together. Cook on medium heat stirring constantly for about 15 minutes until mixture has thickened to the point that you can see the bottom of the pan when stirring. Pour into bowl or pyrex and let cool completely. Butter your hands and take about 1 tablespoon of mixture and roll into 1 inch balls. Roll the ball in the sprinkles or crushed candies of your choice. Store in a tupperware for up to 2 weeks.