My mate made some similar to these and a few weeks later I thought about them. Then a cookie craving me reached for the cupboard doors and decided to create my own! They're really morish and not sickly sweet.
1/2 cup soft butter,
1 cup brown sugar,
1 cup white sugar,
3-3 1/2 cups plain flour,
1 tsp vanilla extract,
1 cup small fudge cubes, (about the size of 1/2 5p)
1/3 cup small cubes of white chocolate, (you can substitute any chocolate but this is all I had in)
1 tbsp cocoa powder.
In a bowl, mix the butter and sugars together. Then add the egg until fully combine- add a tsp or two of flour if it curdles or seperates- which it probably will. Then add the vanilla.
In a small seperate bowl combine the chocolate and fudge and 1 tbsp flour.
Then in the first mixture, add the flour.
Then add the fudge and chocolate to the mixture.
Then with the final mixture add the cocoa powder in 4 parts- sprinkle it over the mixture, marble through. Add the next 1/4 marble through and continue until all gone.
Then scoop it with 2 tablespoons and place on a greased and lined baking sheet in balls a few inches apart.
Then bake for 10-15 minutes in 180oC oven until set and slightly crackled on the outside and sticky, soft and gooey on the inside.
Wait 5-10 minutes to slightly cool and dig in!!