Tip the caster sugar into a small saucepan and add the liquid glucose, cream of tartar, salt and the water.
Slowly heat the mixture to dissolve the sugar and then bring to the boil.
Cook until the sugar syrup reaches 114C and then pour straight into heatproof bowl, add the coffee extract. Swill the coffee extract in, but don't stir.
Leave to cool at room temperature for 10 minutes, until the mixture has thickened with a skin covering the surface.
Using a hand-held electric mixer, beat the syrup until it thickens and becomes a smooth thick white paste. This will take about 3-5 min at slow to medium speed.
Once the coffee cream mixture starts to get thick, remove the fondant from the bowl and knead it by hand until it’s silky and smooth.
Add more water, essence or alcohol if needed to create a firm sugar dough.
Cover with cling film and leave to cool down completely for few hours or overnight.
When ready to continue, lightly dust the work surface with icing sugar and roll the fondant out to a thickness of 2-3mm Using a cookie cutter, stamp out rounds or squares and place these on a parchment lined tray. Chill for 20 minutes.
Alternatively, roll pieces of the fondant creams in your hands and flatten them a little to create oval shapes.