Simmer a pot of water over medium low heat
Add 2 egg yolks and 1 tablespoon of water in a heat proof mixing bowl
Bring it over to the pot of simmering water and whisk it over the pot of simmering water (ensure that the water is not touching the bottom of the mixing bowl)
Whisk vigourously until the egg yolk thicken to your desired consistency (it should be thick)
Add Butter and beef drippings and continue to whisk vigorously over the simmering water until butter and fats incorporated into the yolk mixture
Add in soy sauce and worcestershire sauce and whisk until well combine
Remove from heat and serve on the side with steak or drizzle sauce over steak
