[size=12]To make one batch of delicious toffee, you'll need:
50g salted butter
300ml water
4 teaspoons malt vinegar
3 tablespoons golden syrup
450g granulated sugar
1 teaspoon bicarbonate of soda (baking soda) Grease a large baking tin with butter (mine was 11 x 7 inches). Heat
the butter, water and vinegar together in a large saucepan with a jam thermometer
(the saucepan should be larger than you think necessary - remember that
this recipe will froth and swell) until the butter has melted. Stir in
the sugar and golden syrup over the heat until they dissolve. Stop
stirring, and bring to the boil. Keep boiling without stirring until
the toffee reaches the hard crack stage on your thermometer (if you
don't have a jam thermometer, a teaspoon of the molten toffee dropped
into a saucer of cold water at hard crack stage will form brittle into
strands and crack when you try to shape it). Be careful - the mixture
will be unbelievably hot, and very dangerous if there are children or
pets around. Remove the toffee from the heat, and gently stir in the
bicarbonate of soda.
Startling frothing will occur. Keep
stirring gently until the bubbles settle down a bit, then pour the
mixture into your greased tin. Wait for between ten and twenty minutes
until the mixture is set up but still warm, and break the toffee into
pieces. Lay these pieces out on a wire rack until the sweets are cool,
then transfer to an air-tight container (or your mouth).[/size]