Step 1

Whisk the flour, baking soda, cornflour and salt together in a bowl

Step 2

In another bowl mix the melted butter, brown sugar and castor sugar until all lumps are gone

Step 3

Mix in the eggs and egg yolks

Step 4

Add the ube halaya and ube extract

Step 5

Pour the wet ingredients into the dry ingredients and mix together

Step 6

Portion half of the dough and add the dark chocolate to one portion, and white chocolate to another

Step 7

With an ice-cream scoop, roll into balls

Step 8

Cover and chill in the fridge for a few hours or overnight

Step 9

Once ready, preheat oven to 170°C

Step 10

Bake for about 13min. Remember they will continue to bake on the cookie sheet so it's ok if they look soft when you first take them out

Step 11

If desired, press a few more chocolate drops to the top of the cookies when still soft - simply for the delight of aesthetics!