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Old Monk
Old Monk: Indian dark rum brand launched December 1954 by Ved Rattan Mohan at Mohan Meakin, Ghaziabad; molasses-based, spice- and vanilla-infused, traditionally 7-year oak vatted, 42.8% ABV; peak 8 million cases, 2026 FSSAI ruling reclassified three variants as rum-flavoured spirit.
Old-fashioned doughnut
Old-fashioned doughnut: a chemically leavened cake-style ring doughnut (sour cream or buttermilk batter), fried at lower temperature (365–375°F) for a craggy, crackled crust distinct from yeast doughnuts.
Olde English 800
Olde English 800 (OE800, "8 ball") is an American malt liquor introduced in 1964, brewed by Miller since 1999 under Molson Coors, sold at 5.9% to 8% ABV and once the top-selling US malt liquor brand.
Oldest McDonald's restaurant
Oldest McDonald's restaurant: the 1953 drive-up stand at 10207 Lakewood Blvd, Downey, California, third built and oldest still operating; the original 1940 San Bernardino site is now an unofficial museum.
Olestra
Olestra (Olean), a sucrose polyester fat substitute developed by Procter & Gamble in 1968 and FDA-approved for savory snacks in 1996; nonabsorbed, noncaloric, reduces fat-soluble vitamin and carotenoid absorption, later largely phased out.
Olipop
Olipop (OLIPOP) is an Oakland, California prebiotic soda brand founded in 2018 by Ben Goodwin and David Lester, built on the OLISMART fiber and botanical blend, with 2-5g sugar per can, $400M 2024 revenue, and a $1.85B valuation.
Olivier salad
Olivier salad (салат оливье), or Russian salad abroad, is a mayonnaise-bound salad of diced potatoes, peas, eggs, pickles, and sausage or chicken, a New Year staple in post-Soviet countries, reinvented in the Soviet era from Lucien Olivier's 1860s Moscow Hermitage restaurant luxury dish.
Omakase (お任せ)
Omakase (お任せ), "I leave it up to you," is the Japanese ordering format in which the chef selects and sequences all dishes at a fixed price; distinct from okimari and okonomi, now extended beyond sushi worldwide.
Omelette
Omelette (French omelette; Spanish tortilla de patatas; Japanese tamagoyaki): a dish of beaten eggs cooked in a pan, often folded around fillings; word from Latin lamella, English from the 1610s, earliest recipes in Le Ménagier de Paris.
Online food ordering
Online food ordering: customers order food via websites, apps, QR-code menus, kiosks, or delivery platforms like Meituan and Ele.me. Covers channels, 15–30% platform commissions, consumer cost premiums, and adoption data.
Oolong (乌龙茶)
Oolong (乌龙茶), also called blue tea, is a partially oxidized Camellia sinensis tea made by withering, tumbling, partial oxidation, fixing, rolling, and drying. Main producers are Fujian, Guangdong, and Taiwan; oxidation spans roughly 10–80%.
Open sandwich
Open sandwich (open-faced sandwich; Danish smørrebrød, Norwegian smørbrød, Swedish smörgås): one slice of bread topped with food rather than enclosed between two slices; rooted in medieval trenchers and central to Scandinavian lunch culture.
Operation Feed the Nation
Operation Feed the Nation was a mass agricultural campaign launched by Nigeria's military government under General Obasanjo in 1976 to raise food production; it was replaced in 1979.
Orange chicken
Orange chicken (美式陈皮鸡) is a Chinese-American dish of battered, fried chicken in a sweet-spicy orange sauce, created in 1987 by chef Andy Kao at a Hawaiian Panda Express and inspired by Hunan tangerine-peel chicken.
Orange extract (hesperidin)
Orange extract (hesperidin): a powder from immature sweet orange (Citrus sinensis) peel, ≥85% hesperidin, GRAS under FDA GRN 796 (Ferrer HealthTech, 2019) for foods at 500 mg per serving.
Orange juice
Orange juice is the unfermented juice of mature Citrus sinensis oranges, sold fresh, not-from-concentrate, reconstituted, or as frozen concentrate (FCOJ, 65–66 °Brix). Distinguished by pasteurization at 85–94 °C, added-back flavor packs, Brazil-led production, and US/EU juice labeling law.
Orange Julius
Orange Julius: 1926 Los Angeles beverage chain founded by Julius Freed with Bill Hamlin's frothy orange drink; bought by Dairy Queen in 1988 and now sold mainly at DQ locations.
Orange wine
Orange wine, also called skin-contact white or amber wine (Georgian qvevri style), is white wine fermented on its skins for days to months, giving amber color, tannin, and texture like a light red; defined by OIV as white wine with at least one month maceration.
Orangina
Orangina is a French carbonated soft drink made from orange juice, pulp, and natural orange zest, first sold in 1936 and known for its bulbous orange-shaped bottle.
Orecchiette
Orecchiette, "little ears," are hand-shaped concave pasta from Puglia, Italy, made of durum semolina, water, and salt; classic dish orecchiette con le cime di rapa; variants include strascinati and chiancareddde.
Oreo
Oreo: chocolate sandwich cookie brand created by Nabisco in 1912, now owned by Mondelēz International and sold in over 100 countries as the world's top-selling cookie. Outlasted predecessor Hydrox (1908); famous for Double Stuf, twist-lick-dunk marketing, and global localized flavors.
Orgeat syrup
Orgeat syrup, also called orzata, is a sweet non-alcoholic almond syrup with orange flower or rose water, originally a barley drink. Essential to the Mai Tai and tiki cocktails; homemade versions keep about two weeks refrigerated.
Orville Redenbacher
Orville Redenbacher (1907-1995), American agronomist from Brazil, Indiana, Purdue 1928; with Charlie Bowman bred a 44:1 expansion popcorn hybrid, launched Orville Redenbacher's Gourmet Popping Corn in 1970, and became a famous TV pitchman; brand now owned by Conagra Brands.
Ossobuco
Ossobuco (os büs, "bone with a hole") is a Milanese braised veal shank dish with marrow, made in bianco without tomato or modern with tomato, finished with gremolata and paired with risotto alla milanese.
Ottoman cuisine
Ottoman cuisine, the culinary tradition of the Ottoman Empire (also called Ottoman Turkish cuisine), fused Central Asian Turkic, Persian, Arab, and Byzantine traditions. Palace cuisine centered on Topkapı's Matbah-ı Âmire; folk cuisine used simpler ingredients, and French influence reshaped elite cooking in the 19th century.
Outback Steakhouse
Outback Steakhouse: American casual-dining steakhouse chain with an Australian theme, founded March 1988 in Tampa by Sullivan, Basham, Gannon, and Cooper; known for the Bloomin' Onion, 'No Rules, Just Right', and ownership by Bloomin' Brands.
Ouzo
Ouzo (ούζο) is a Greek anise-flavored distilled spirit, legally a "distilled anis", produced exclusively in Greece and Cyprus, minimum 37.5% vol, at least 20% distillate, that turns milky with water (the ouzo effect).
Ovaltine
Ovaltine (Ovomaltine) is a Swiss malted milk drink powder created by Albert Wander in Bern, launched in 1904, sold in pharmacies before becoming a breakfast drink; ABF owns it worldwide except the US, where Nestle holds the trademark.
Oven
An oven is an enclosed heated cavity for cooking food by radiation, convection, and conduction, powered by gas, electricity, or microwaves; types span domestic wall ovens, commercial tunnel ovens up to 100 meters, and FDA-regulated microwave ovens.
Oxtail
Oxtail, or cow tail (queue de bœuf, rabo de toro), is a collagen-rich beef variety meat sold in cross-sections, braised 3–5 hours into gelatinous stews such as Jamaican oxtail, kare-kare, and sokkoritang.