The Church of England has accused Cadbury and the National Trust of "airbrushing faith" by omitting references to Easter from egg hunts.
The Archbishop of York said calling the event the Cadbury Egg Hunt was like "spitting on the grave" of the firm's Christian founder, John Cadbury.
The chocolate maker denied the claims saying it clearly used the word Easter on its packaging and in its marketing.
The National Trust also denied it was downplaying the significance of Easter.
The annual egg hunts at National Trust properties around the country over the Easter weekend have been run in partnership with Cadbury for 10 years.
But Archbishop of York John Sentamu said John Cadbury, a Quaker who founded the firm in 1824, was renowned for his religious beliefs and would not condone dropping the word Easter.
Alternatively, How about a Real Easter Egg this Easter?
Out of the 80 million Easter eggs sold in this part of the world every year, The Real Easter Egg is the only one which has an Easter story booklet in the box, is made of Fairtrade chocolate and makes a donation to charity from its sales.
The Real Easter Egg was launched in 2010. It was a real struggle as all the supermarkets turned it down at first. It was left to churches and church schools to place orders and fund The Meaningful Chocolate Company to begin making The Real Easter Egg. To date, we have sold more than one million eggs with 750,000 of these sent through the post directly to churches and schools.
Not only has there been an increase in Fairtrade chocolate sales, but nearly £250,000 has been donated to charity.