Base

Cup of Yum
1. Pre-heat oven to moderate (180 degrees celsius, fan-forced).
2. Grease a slice tin and line with baking paper, leaving excess on the sides to lift out slice once cooked.
3. Crush weetbix into a bowl.
4. Add remaining dry ingredients to bowl and stir to combine.
5. Melt butter and add to dry ingredients. Mix well.
6. Press mixture into slice tin with hands and even the top surface using the back of a spoon.
7. Cook for 15 minutes.
8. Allow to cool before adding marshmallow topping.

Marshmallow Topping

1. Place water, sugar and gelatine into a saucepan. Place on low heat and stir to dissolve sugar and gelatine.
2. Bring to the boil and boil for 5 minutes. (You should only need very low heat to boil)
3. Let cool for half an hour before beating (starting on low speed and moving to high speed) for about 5 minutes or until mixture is light and fluffy.
4. Add food colouring if you are opting to colour the marshmallow layer and mix again until colour is even throughout mixture.
5. Pour onto top of cooled base and use a plastic spatula to spread out evenly.
6. Add sprinkles or flaked coconut to top of marshmallow if you're opting to add these.
7. Allow to set in the fridge for about 2 hours.
8. Lift slice from tray using the overhanging paper. Cut slice into squares using a sharp knife.
9. Store slice in an airtight container in the fridge.