Preheat the oven to 170 degrees celsius fan-forced.
Line 2 or 3 cookie slides with baking paper.
Place the cubed butter in TM bowl. Cream 10 sec/Speed 7.
Scrape down the bowl. Position the butterfly in the bowl.
Add brown sugar to the butter. Whip 30 sec/Speed 4.
Scrape down the bowl.
Add condensed milk to the bowl. Whip 30 sec/Speed 4.
Remove the butterfly.
Add flour, choc chips and chocolate cubes. Use the spatula to manually stir the mixture to combine roughly.
Place the lid on TM bowl but remove the MC and insert spatula.
Go to dough mode and select, Knead 1 min. Use the spatula to assist.
Roll the dough into 30 balls.
Place the balls on the prepared cookie slide and flatten them.
Leave a lot of room for spreading.
Cook the dough for 15-20 minutes.
NOTE: The cookies will spread quite a lot as they cook, so make sure you leave enough room for spreading. Take a look at the picture above as a guide.Once the cookies have finished cooking leave them on the tray to cool as they will be quite soft whilst they're hot.