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Sloes are the fruit of the blackthorn bush and are actually a wild type of plums. The flavour of the fruit is bitter, so the small plums are not suitable for eating. However, the effect of frost makes them milder so some recipes suggest collecting after first frost but they are on the decline in Essex by then so best time to pick is mid � late Sept. Putting them in the freezer overnight is same as a first frost. Any bitter flavour is lost when making liqueurs.
Sloe gin is traditionally made in Ireland and Britain. Sloe liqueur is also made in Scandinavia, Germany, France and Spain. This delicious liqueur has a flavour similar to plum liqueur and the colour is dark red. It is best served in small amounts as an after-dinner drink with or without ice.