Blender Hollandaise Sauce
["1/2 c. butter", "3 egg yolks", "2 Tbsp. lemon juice", "1/4 tsp. salt", "dash of pepper", "1/2 tsp. prepared mustard"]
["Heat butter in saucepan until bubbly, but not browned.", "Put egg yolks, lemon juice, salt, pepper and mustard in blender container.", "Cover and turn on low speed about 5 seconds."]
["butter", "egg yolks", "lemon juice", "salt", "pepper", "mustard"]