Recipe From Around the World

Put yolks, lemon juice and seasonings in blender. Heat butter and
water separately, taking great care not to burn the butter. Blend egg
mixture on high for about half a minute, then with blender still on high,
add boiling water and half of the butter, very slowly and in a steady
stream, then the rest of the butter can be added more quickly. The
heat from the boiling water and the hot butter should cook the yolks
and create a satin- smooth mixture. Serve immediately or keep warm
in a bowl set in another bowl of hot water.