Preheat oven to 160 degrees Celsius.

Grease a 23cm x 32cm pan and line with baking paper.

Combine all ingredients in a large bowl.

Press mixture firmly into prepared pan.

Bake for 40 mins or until lightly golden (mine was done in 20mins so keep a close on the oven)

Cool then cut

Store in an airtight container up to two weeks