Heat the oven to 350 degrees and line 14-16 muffin cups with cupcake liners. Sift together the flour, baking soda, salt, and cocoa powder and set aside. Use a standing mixer or hand-mixer to cream the butter. Add the sugar and vanilla and mix to combine. Add the eggs one at a time, beating after each one until smooth.
Top with more ganache and a Dark Chocolate Oreo and sprinkle with mini chocolate chips (optional).