Preheat the oven to 350°F.
Combine butter ½ cup chocolate chips and unsweetened chocolate in sauce pan over low heat and stir mixture until smooth.
Remove from heat. Stir sugars into mixture, then add eggs, vanilla, then flour, salt and remaining ¾ cup chocolate chips.
Split batter among 1 paper-lined muffin tins. Bake cupcakes for 18-20 minutes.
Let cupcakes cool completely and enjoy.