There’s pricing pressure taking hold of a specific corner of global agriculture — and it’s bittersweet.

Prices of cocoa have more than tripled over the last year, creating a big headache for candy makers and other food companies that use the ingredient to make chocolate.

In recent years, the price of cocoa had hovered at around $2,500 per metric ton. But reports of a weaker-than-expected crop set off concerns about supply, sparking the commodity’s run-up in recent months. Cocoa hit an…