All about the Sauce, 33 of 50. Whisky & Green Peppercorn Sauce which is wonderful with a steak. So green peppercorns are picked before they ripen so they are much lighter in flavour than the black peppercorns you may be more familiar with.. they are preserved usually in brine and you buy them like that from supermarkets or online. They make a great addition to a sauce especially with red meats in my opinion. The choice of steak is really up to you… the sauce is the same method regardless and the