Step 1

Preheat oven to 160 degrees celsius (fan-forced) and line a 20cm square tin with baking paper. Set aside.

Step 2

Place the butter into a microwave-safe bowl. Heat for 1 minute.

Step 3

Add the caster sugar and sifted cocoa powder and stir.

Step 4

Heat in the microwave on 30 second bursts (50% power) until melted and combined - stirring each time.

Step 5

Allow to cool slightly.

Step 6

Add the vanilla extract and the eggs and whisk until combined.

Step 7

Sift the plain flour into the bowl and gently fold through.

Step 8

Pour the brownie mixture into the prepared tin and bake for 25-30 minutes or until cooked through.

Step 9

Leave in the tin to cool completely.

Step 10

Preheat oven to 160 degrees celsius (fan-forced) and line a 20cm square tin with baking paper. Set aside.

Step 11

Place the butter into the Thermomix bowl. Melt on 80 degrees, Speed 2, 3 minutes.

Step 12

Add the caster sugar and cocoa powder and mix on Speed 4, 10 seconds. Scrape down the sides of the bowl and repeat for a further 10 seconds. Allow to cool slightly.

Step 13

Add the vanilla extract and the eggs and mix on Reverse, Speed 4, 10 seconds. Scrape down the sides and repeat.

Step 14

Add the plain flour and mix on Speed 4, 5 seconds. Scrape the sides of the bowl and repeat.

Step 15

Pour the brownie mixture into the prepared tin and bake for 25-30 minutes or until cooked through. Leave in the tin to cool completely.