Pre heat your oven to 180°C and spray your doughnut tray with non stick spray. You could also use cooking oil or melted coconut oil and grease using kitchen paper.
Add your self raising flour, salt, sugar and baking powder to a bowl and mix.
In a separate bowl whisk your dairy free milk milk, eggs (or flax eggs), oil and vanilla extract. Add this to your dry ingredients and mix well.
Add the batter to your doughnut tray making sure that its not completely full as they will rise!
Bake for around 10-12 minutes or until they are golden brown.
Cool the doughnuts on a wire tray and bake any additional mixture. (My doughnut tray is only big enough for 6 so I cook the second batch whilst the first batch cool down).
To make the cinnamon sugar coating mix together your granulated sugar and cinnamon.
Melt your dairy free butter and using a brush, brush your doughnuts with the melted butter, this will allow the sugar to stick. You can then dip it in the cinnamon sugar mix.
Leave them to dry and enjoy!