1

Slowly melt the butter in a saucepan together with the stock, lemon juice and vinegar.

2

In a tall measuring cup, combine the yolk and egg and add the hot ingredients, mixing constantly. Season to taste with salt and pepper.

iSi-Tip:
Spice up the hollandaise sauce with lime, chilli or passion fruit juice to your taste!

3

Pour the sauce through the <a href="/us/culinary/recipes/detail" title="×" data-content="<div class="ce-textpic ce-center ce-above"><div class="row"><div class="col-50"><div class="ce-gallery" data-ce-columns="1" data-ce-images="1"><div class="ce-outer"><div class="ce-inner"><div class="ce-row"><div class="ce-column"><figure class="image"><img class="image-embed-item mw-ui-100 h-auto" src="/fileadmin/_processed_/6/b/csm_Sieb-_-Trichter_klein_3ae6e47538.jpg" width="330" height="241" alt="" /></figure></div></div></div></div></div></div></div><div class="row"><div class="col-50"><div class="ce-bodytext"><p>Almost everything that is filled into the iSi bottle should be passed through a sieve to prevent clogging of the head. Even small grains of salt can interfere with the proper functionality of the device.</p><p>The iSi Funnel &amp; Sieve Set has therefore been specially designed and developed for all iSi Whippers to enable you to pass cleanly and conveniently directly into the stainless steel bottle.</p><p><strong><a href="https://www.isi.com/en/culinary/products/detail/product/funnel-sieve/" target="_blank">&gt;&gt; More Info</a></strong></p></div></div></div></div>">iSi Funnel & Sieve directly into a 0.5 L Whip, screw on an iSi Professional Charger and shake approximately 16 times.

The sauce can be kept warm in the iSi Whipper, in a bain-marie for up to four hours at a maximum of 75 °C.