What fruit, often soaked in a suspension of food coloring, is found on top of a Manchester tart?
Manchester tart: Manchester tart is a traditional English baked tart consisting of a shortcrust pastry shell, spread with raspberry jam, covered with a custard filling and topped with flakes of coconut and a Maraschino cherry. Maraschino cherry:  In their modern form, the cherries are first preserved in a brine solution usually containing sulfur dioxide and calcium chloride to bleach the fruit, then soaked in a suspension of food coloring (common red food dye, FD&C Red 40), sugar syrup, and other components.
Maraschino cherry