In the 1500s, Spanish conquistadors such as Hernán Cortés who sought gold and silver in Mexico returned instead with chocolate. Although the Spanish sweetened the bitter drink with cane sugar and cinnamon, one thing remained unchanged: chocolate was still a delectable symbol of luxury, wealth and power. Chocolate was sipped by royal lips, and only Spanish elites could afford the expensive import.
Spain managed to keep chocolate a savory secret for nearly a century, but when the daughter of Spanish King Philip III wed French King Louis XIII in 1615, she brought her love of chocolate with her to France. The popularity of chocolate quickly spread to other European courts, and aristocrats consumed it as a magic elixir with salubrious benefits. To slake their growing thirst for chocolate, European powers established colonial plantations in equatorial regions around the world to grow cacao and sugar. When diseases brought by the European explorers depleted the native Mesoamerican labor pool, African slaves were imported to work on the plantations and maintain the production of chocolate.
Chocolate remained an aristocratic nectar until Dutch chemist Coenraad Johannes van Houten in 1828 invented the cocoa press, which revolutionized chocolate-making. The cocoa press could squeeze the fatty cocoa butter from roasted cacao beans, leaving behind a dry cake that could be pulverized into a fine powder that could be mixed with liquids and other ingredients, poured into molds and solidified into edible, easily digestible chocolate. The innovation by van Houten ushered in the modern era of chocolate by enabling it to be used as a confectionary ingredient, and the resulting drop in production costs made chocolate affordable to the masses.