The students visited Crockford Bridge Farm in Surrey last month to pick their own recipe supplies, which they then took back to their schools and used to make mango chutney.
Food retailer, Whole Foods Market, will soon give the children the chance to sell their products as part of the Schools to Market project that is now in its fifth year.
Stephanie Wood, founder of School Food Matters said: “The children’s enthusiasm for Schools to Market grows every year.
“Their boundless enthusiasm for the farm visit is a delight to see and they grow evermore confident as they learn new skills - all via a pot of chutney.”
The project is supported by the Whole Kids Foundation, the charitable organisation set up by Whole Foods Market in 2009.
Ben Woodgate from Whole Foods said: "It is one of the highlights of the year having the Schools to Market sale days. We have in-store sample days most days from recognised brands, but these are a bit different.
"The whole ethos of Schools to Market is to get children excited about food; growing, cooking and selling it. The fact they are learning along the way is a fantastic by-product."
All money raised will go back into school food projects, such as school gardens and cookery clubs. To date nearly £10,000 has been raised.