Step 1

Preheat oven to 160 degrees celsius (fan-forced) and line an 18 x 28cm slice tray with baking paper.

Step 2

Place the Weet-Bix into the Thermomix bowl and mix for 10 seconds, Speed 7 until finely crushed. Transfer the Weet-Bix crumbs to a seperate bowl and set aside until needed.

Step 3

Without washing the bowl, place the butter into the Thermomix bowl and melt for 3 minutes, 60 degrees, Speed 2.

Step 4

Add the crushed Weet-Bix, cocoa powder, brown sugar, coconut and egg and mix for 10 seconds, Speed Scrape down the sides of the bowl and mix for a further 10 seconds, Speed 4.

Step 5

Transfer the mixture to your prepared slice tray and cook for 18 - 20 minutes, or until the slice is firm to the touch.

Step 6

Allow the slice to cool completely in the tin before preparing the icing. Place all of the icing ingredients into a clean and dry Thermomix bowl and mix for 30 seconds, Speed Scrape down the sides of the bowl and mix for a further 20 seconds, Speed 3 or until smooth.

Step 7

Pour the icing over the completely cooled slice and use a butter knife to smooth. Decorate with 100s and 1000s or sprinkles.