Heat deep fat fryer as per manufacturer’s instructions.
Pour the yeast, psyllium husk, vanilla essence and warm water into a jug and stir and allow to stand for 5 minutes.
Add the yeast mixture, Fate low protein all-purpose mix and sugar into a bowl and mix into a dough.
Leave the dough to stand for 10 minutes.
Dust your hands and work surface with Fate low protein all-purpose mix and divide the dough into 8 even portions and roll into smooth balls.
To shape the balls into rings, push the handle of a spoon through the centre of the ball.
Dust your index finger with Fate low protein all-purpose mix and push it through the hole in the dough ball and turn the ball around your finger to form a ring.
Repeat with all the dough balls.
Using a slotted spoon place the dough rings into the deep fat fryer.
Deep fry for 3 minutes on each side or until golden brown.
Carefully remove using the slotted spoon and place on kitchen towel to remove excess oil.
Place the doughnuts on a wire rack to cool.
To decorate, firstly make the base coloured-icing; mix the warm water and food colouring together in a bowl and gradually add in the icing sugar, until a smooth paste is formed.
Using a teaspoon, spread the icing over the cooled doughnuts and leave them to stand to allow the icing set for 15 minutes.
Use other permitted toppings to decorate as scary as you can!