Now, it seems the Duchess of Sussex's recipe is taking the UK by storm with shoppers flocking to attempt the dish.
According to Waitrose, searches for banana bread recipes on the site have increased by 52 per cent since news of Meghan's dish made headlines.
Meanwhile a spiced banana loaf has proved particularly popular, seeing hits on the page increase by 137 per cent.
The pregnant duchess took the banana bread, packed with chocolate chips and a touch of ginger, to Mountain View Farm near Dubbo, New South Wales, to meet the Woodley's, a five-generation farming family suffering in the countries drought.
Benita Woodley, 20, whose parents Scott and Elaine currently farm the 3,000-acre property, said it was delicious and "such a nice and thoughtful thing for her to do."
Nutritionists have hinted the addition of ginger could suggest the Duchess - currently in her second trimester - could be suffering from morning sickness and nausea.
Ginger root has a long history of being used in traditional and alternative medicine to help calm the stomach.
Meghan and Harry's royal tour continues, as they head to Fiji on October 23.