Melt butter to sizzling; add lobster and heat. Note: if you are using fresh lobster you will want to add some salt. Now add the vinegar and stir; next add enough blend to cover the lobster. (The vinegar will thicken the blend). When hot, place some of the creamed mixture on one piece of toast—butter side up. Place second toast on top and add more creamed lobster. Goes well with mashed potato and vegetables, or fries.