Chocolate Ganache (butter)

Melt the chocolate chips in a microwave at 30 seconds intervals, stirring after each heating, 1 1/2-2 minutes. Once the chocolate mixture is melted and smooth, begin to stir in the butter 1 tablespoon at a time, stirring after each addition until the butter is completely incorporated. The chocolate will take between 6 and 8 tablespoons of the butter. In its semi-liquid state it can be poured and spread over brownies or cake or can be cooled and spread between butter cookies to sandwich.