Chocolate-ganache filled cake mix pistachio cupcakes with a homemade chocolate cream cheese buttercream frosting!
I like my chocolate frosting to be more lightly chocolate-flavored. If you'd like the chocolate to be deeper and strong, you can add more cocoa powder, between 1/3 cup and 1/2 cup. You'll need to add slightly more milk to adjust the consistency. These taste even better the second day, once the flavors in the frosting settle, and the pistachio flavor in the cupcakes becomes stronger.