Pre-heat the oven to 160 degrees Celsius.
In a bowl, add in the butter and chocolate and microwave it till it has melted. Do not overheat. Let it cool slightly.
In a bowl using an electric mixer, mix the eggs, vanilla and sugar very well till light and fluffy.
Add in the chocolate mixture and mix well till combined.
Add in the dry ingredients and mix just enough for them to be combined. Do not over mix. Mix in the chocolate chips and let the batter rest for 5-10 minutes at room temperature.
Using a medium-sized scoop, scoop in the cookie batter and top with chocolate chips. Bake for about 10-15 minutes or until the edges are set, and the center is still gooey.
Let it cool slightly and serve!
