Warm the olive and sesame oil gently in a small saucepan over low heat. Add the anchovies and let them simmer. They will start to break apart; as they cook break them up futher with a stiff spatula. Cook 8 minutes then remove from heat and allow to cool. Whisk in the powdered mustard, followed by the soy and Worcestershire.

Pour into a blender and blend a few seconds until smooth.