To make 'cookies in a jar' you'll need a 1 litre glass jar.
In a small bowl, mix the plain flour, baking powder, bi-carb soda and salt together.
Carefully spoon the flour mixture into the bottom of the glass jar. Gently move the flour around so that you have an even layer.
Gently spoon the brown sugar in an even layer over the flour.
Continue creating layers in the following order: caster sugar, rolled oats, dried cranberries, white chocolate chips.
Close the lid of the glass jar (if you have any extra space at the top of the jar, simply top up with extra chocolate chips).
Print out our free recipe gift tag and attach to the jar with a ribbon (see notes).