Foolproof Hollandaise
["4 egg yolks (room temperature)", "1/2 tsp. salt", "1/2 tsp. dry mustard", "1 Tbsp. lemon juice", "shot of Tabasco", "1/4 lb. butter"]
["Put eggs, salt, mustard, lemon juice and Tabasco in blender and blend for 3 minutes.", "Heat butter until melted and hot.", "Do not burn.", "Add butter, in a steady stream, to blender while blender running."]
["egg yolks", "salt", "dry mustard", "lemon juice", "shot of Tabasco", "butter"]