step 1
Preheat the oven to 180°C, (160°C for fan ovens), Gas Mark 4.
step 2
In a large bowl, cream the butter, sugar and condensed milk until light and fluffy. Mix in the flour to a soft dough and then mix in the chocolate chips.
step 3
Roll the dough into walnut size balls and place on a baking sheet, flattening them out slightly. Space well apart as they’ll spread! Bake for 12-15 minutes.