The AGA cooker is a cast-iron range cooker developed in Sweden in 1922. The name "AGA" is an acronym for Aktiebolaget Gas Accumulator, which translates to "Gas Accumulator Company" in English. The AGA cooker was invented by Gustaf Dalén, a Nobel Prize-winning physicist and engineer who was blinded in an accident while experimenting with pressure regulators for gas lighting.

The AGA cooker was initially designed as a more efficient and reliable way to cook food, using stored heat from a coal or wood fire to provide consistent temperatures throughout the oven. Over time, the design was refined to include gas and electric models, and the AGA cooker became a status symbol in homes throughout the United Kingdom and beyond.

Today, AGA cookers are still manufactured and sold by AGA Rangemaster, a division of Middleby Corporation, and are known for their durability, energy efficiency, and iconic design. Despite their high cost and maintenance requirements, AGA cookers remain popular among homeowners who value their traditional aesthetics and cooking capabilities.