Using a non-stick pan, put the water on a low heat and melt in the butter.
Add the sugar and bring to the boil.
It is important to keep stirring
all the time.
Once it is boiling, stir in the condensed milk
Simmer
for 20 minutes.
Again, keep stirring to avoid it sticking/burning.
Take
off the heat
Adding the flavouring
of your choice and beat vigorously for five minutes.
Pour into a rectangular greased tin
Once it is partly
cooled, cut into bars (roughly 5 inches long by 1/2 inches wide).
Once
the tablet is cold, wrap the bars in waxed paper
Store in an airtight
jar or tin.