Melt 3/4 cup of butter
until bubbly, and
then keep warm.
Warm the bowl of
your blender with
hot water for 1 minute
then drain well. Put
3 large egg yolks,
2 Tbsp. lemon
juice, 1/2 tsp. Dijon
mustard and 1/4 tsp.
Tabasco in blender.
Blend to combine.
Now blend in 1 Tbsp.
boiling water.