I've slightly altered this to use a days bran allowances, that way I can split it into two equally and use it alongside my bread.
2 tbs Oatbran
1 tbs Wheatbran
1.5 tbs Fat Free Plain Yoghurt
½ tsp Splenda or 6 drops of liquid sweetner
Sprinkling of cinammon or ginger etc (1/4 tsp Schwartz Mixed Spice works really well)
Mix all ingredients in a small bowl will look crumbly and dry.
It will look like you need to add more liquid but don't it should be ok.
Put onto a small plate and press down with the back of a spoon into the shape of a round biscuit (use a wet spoon, it will help prevent the mixture sticking to the spoon).
Microwave on high power for 1 minute, turn biscuit over (it will look delicate but should stay in shape), cook for a further 30 seconds. ( I actually needed to microwave this 1.5min on high (900w).
Eat warm which is very soft, almost rubbery or leave to cool and get a bit crunchier.
Adjust your spices and spenda to taste, some may want to add more than ½ tsp.