Dessert lovers can contribute to a well-known US medical charity by trying a piece of a cupcake so gigantic that it will take a forklift to carry it.

The cupcake created in a six foot by six foot (1.8 metre by 1.8 metre) oven at Jensen Industries will be unveiled in the Kroger parking lot at 13 Mile Road and Woodward on Saturday. Requiring a week's preparation and 24 hours of baking, the cake is expected to be 7 feet (2.1 metres) tall, 6 feet (1.8 metres) wide and 7,000lbs (3,175kg) heavy.

Alta Lift Truck Services has donated a Yale GLP155CA that can move loads up to 15,000lbs to transport the cupcake.

"Alta is proud to participate in this event ... We are even encouraging our local employees to stop by and try a piece," says Alta Lift Truck Services' owner Steven Greenawalt.

Anyone who donates to Susan G Komen for The Cure charity can try a piece of the cupcake or have their picture taken with it.