Add the butter and cream cheese to a small saucepan. Set the saucepan over a low heat. Stir the butter and cream cheese together, melting gently to combine until completely smooth. You will need to use a soft, spreadable cream cheese to ensure it melts easily.
Add the heavy cream and stock to the saucepan. Stir well to combine with the cream cheese and butter. Bring the sauce to a gentle simmer. We have used beef stock for its rich flavor, perfect to complement steak. You may however use a chicken or vegetable stock if preferred. You may also wish to season the sauce with salt and pepper. This will depend on the strength of seasoning in your stock. Please adjust your macros for any changes.
Add the whole peppercorns to a mixing bowl or mortar. Gently crush them so they break down ever so slightly using the base of a rolling pin or pestle. You may use more or less peppercorns as desired to suit your personal tastes. Be sure to adjust your macros for any changes. Add the crushed peppercorns to the sauce and stir well. Simmer the sauce gently until thickened and piping hot through. This should take about 2-3 minutes. If you would prefer a thinner sauce you may add extra stock as desired.