Question: What fruit, often soaked in a suspension of food coloring, is found on top of a Manchester tart?

Context articles: Maraschino cherry
Food orange 7
Zarda (food)
Caramel color
Manchester tart
Rúgbrauð
Food coloring
Titanium dioxide
Flavoxanthin
Cocadas

A maraschino cherry ( or ) is a preserved, sweetened cherry, typically made from light-colored sweet cherries such as the Royal Ann, Rainier, or Gold varieties.
 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.
Food orange 7, the ethyl ester of beta-apo-8'-carotenic acid, is a carotenoid with an orange-red color.
 It is found in small quantities in some plants, but is often produced commercially from apocarotenal (E160e).
 It is used as a food coloring under the E number E160f and is approved for use in the EU and Australia and New Zealand where it is listed as food additive 160f; it is banned in the United States.
Zarda (Urdu: ‎ ) is a traditional sweet dish from the Indian subcontinent, made by boiling rice with (orange) food coloring, milk and sugar, and flavoured with cardamoms, raisins, saffron, pistachios or almonds.
 The name Zarda comes from Persian and Urdu word 'zard' meaning 'yellow', hence named since the food coloring added to the rice gives it a yellow color.
 Zarda is typically served after a meal.
 In the Indian subcontinent, zarda was and still remains a popular dessert on special occasions such as weddings.
Caramel color or caramel coloring is a water-soluble food coloring.
 It is made by heat treatment of carbohydrates, in general in the presence of acids, alkalis, or salts, in a process called caramelization.
 It is more fully oxidized than caramel candy, and has an odor of burnt sugar and a somewhat bitter taste.
 Its color ranges from pale yellow to amber to dark brown.
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.
 A common variation, especially in Manchester itself, has a layer of thinly-sliced bananas under the custard.
Rúgbrauð (] ) is an Icelandic straight rye bread.
 It is traditionally baked in a pot or steamed in special wooden casks by burying it in the ground near a hot spring, in which case it is known as "hverabrauð" or "hot-spring-bread".
 Modern "rúgbrauð" is usually made in a square baking pan.
 The bread is crustless, dark and very dense, usually rather sweet, and keeps for a long time.
 It is often served with butter, mutton pâté, hangikjöt (smoked lamb), or with pickled herring.
 Dry "rúgbrauð" would be ground and mixed with buttermilk to form a kind of porridge.
 Stale "rúgbrauð" is often soaked, then made into "brauðsúpa" (bread soup) - that is, simmered with raisins and flavorings (usually lemon) and served hot with whipped cream as a dessert.
Food coloring, or color additive, is any dye, pigment or substance that imparts color when it is added to food or drink.
 They come in many forms consisting of liquids, powders, gels, and pastes.
 Food coloring is used both in commercial food production and in domestic cooking.
 Food colorants are also used in a variety of non-food applications including cosmetics, pharmaceuticals, home craft projects, and medical devices.
Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO2 .
 When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891.
 Generally it is sourced from ilmenite, rutile and anatase.
 It has a wide range of applications, from paint to sunscreen to food coloring.
 When used as a food coloring, it has E number E171.
 World production in 2014 exceeded 9 million metric tons.
Flavoxanthin is a natural xanthophyll pigment with a golden-yellow color found in small quantities in a variety of plants.
 As a food additive it used under the E number E161a as a food coloring although it is not approved for use in the EU or USA.
 It is listed as food additive 161a in Australia and New Zealand where it is approved for usage as an ingredient in food products.
Cocadas are a traditional coconut candy or confectionery found in many parts of Latin America.
 They are particularly popular in Mexico, Argentina, Brazil, Colombia, Venezuela, Bolivia and Chile.
 They are oven baked but are served at room temperature to provide their chewy and soft texture.
 Made with eggs and shredded coconut, cocadas come in a variety of colors due to the modern use of food coloring, however the traditional variations are golden brown.
 They are often garnished with almonds, either whole or chopped.
 There are hundreds of cocadas recipes, from the typical hard, very sweet balls to cocadas that are almost the creamy texture of flan.
 Other fruit, often dried, can be added to the cocadas to create variety, which will also lend to a wide spectrum of cocada colors.
 Cocadas are mentioned as early as 1878 in Peru.