Chilled Minted Pea Purée

Preparation

1. Heat the butter in a large pot and add the onion. Sweat the onion over low heat about 1 minute, or until it is soft but not brown.
2. Add the peas and snap peas, the stock, and some kosher salt.
3. Bring the stock to the boil and continue cooking the soup at a rapid boil, stirring often,