Step 1

Use a stand mixer or electric hand beaters and in a large bowl cream butter, sugar until pale and creamy.

Step 2

Beat egg into butter mixture until well combined.

Step 3

Add sifted flour, cocoa and bicarbonate of soda, mix on slow speed until well combined.

Step 4

Reserve around 1/4 cup of the white chocolate chips and stir the remaining white chocolate chips into the cookie dough.

Step 5

Scrape dough out of mixing bowl on to plastic wrap.  Wrap the dough well and place in the fridge for 30 minutes or until firm.

Step 6

Use a stand mixer or electric hand beaters and in a large bowl cream butter, sugar until pale and creamy.

Step 7

Beat vanilla bean paste into the butter mixture.

Step 8

Beat egg into butter mixture until well combined.

Step 9

Add sifted flour and bicarbonate of soda, mix on slow speed until well combined.

Step 10

Reserve around 1/4 cup of the dark chocolate chips and stir the remaining dark chocolate chips into the cookie dough.

Step 11

Scrape dough out of mixing bowl on to plastic wrap. Wrap the dough well and place in the fridge for 30 minutes or until firm.

Step 12

Preheat oven 180 deg C (360 deg F).  Line 2 baking trays with baking paper.

Step 13

Roll 1 tablespoon of each cookie dough into a ball.  Press the balls together and then very gently roll it in your hand to join them.

Step 14

Place dough ball on the baking sheet and press down and flatten slightly.  When doing this you want to ensure that you have both the vanilla and chocolate dough showing.

Step 15

Top the cookie with a couple of extra chocolate chips.  White on the chocolate dough and dark on the vanilla dough.

Step 16

Repeat this process with the remaining cookie dough, leaving room to spread between the cookies.  Store unused dough in the fridge until you are ready to bake the next batch.

Step 17

Place trays in the oven and bake for 12 minutes or until golden and cooked through.  Leave on trays to cool for 5 minutes before transferring them to a cooling rack to cool completely

Step 18

Store cookies in an airtight container.