Preheat the slow cooker to high
Whisk the dry ingredients together from the batter ingredients list, until combined
Add the wet ingredients, and whisk until smooth
Pour into the bottom of the slow cooker. Spread out and smooth over the top
Make the topping by missing together all of the dry ingredients, until combined – apart from the hot water
Pour into the slow cooker, on top of the batter mixture
Pour the hot water over the top of the batter mixture and topping. DO NOT STIR
Cook for 3 hours, or until a toothpick inserted into the batter comes out clean (a few crumbs on it)
