Step 1

Preheat oven to 180 degrees celsius.

Step 2

Line 2 flat cookie baking trays with baking paper and set aside until needed.

Step 3

Place the chopped butter and chocolate melts into the Thermomix bowl.

Step 4

Melt for 3 minutes, 80 degrees, Speed 2 or until melted. You may need to scrape down the sides of the bowl partway through.

Step 5

Remove melted chocolate and butter mixture and set aside.

Step 6

Insert the butterfly - you don't need to clean the bowl!

Step 7

Place a bowl on the Thermomix lid and weigh the plain flour into it. Add the baking powder and salt and set the bowl aside till needed.

Step 8

Place the eggs, caster sugar, cocoa powder and vanilla extract into the Thermomix bowl and mix for 2 minutes, Speed 4.

Step 9

Without setting the timer, mix on Speed 1 and slowly add the melted chocolate mixture to the egg mixture through the MC hole.

Step 10

Increase to Speed 3 for 20 seconds.

Step 11

Reduce to Speed 1 and add the salt, baking powder and plain flour through the MC hole.

Step 12

Mix until just combined.

Step 13

Add the chocolate chips / peanuts (or whatever add-ins you like) and fold through with a spatula.

Step 14

At this stage the mixture will be very thin (almost like a cake batter).

Step 15

Place tablespoonfuls of the mixture onto the prepared trays.

Step 16

The cookies will spread so make sure you leave a 3-4cm gap between each cookie.

Step 17

Bake for 12 minutes.

Step 18

Remove from the oven and leave on the baking trays for a further 10 minutes (they will continue to cook).

Step 19

Use a flat spatula to transfer the cookies to a wire rack to cool completely.