I used fresh (instead of packaged) potatoes, real bacon bits, onion chive from my garden instead of green/spring onion, Miracle Whip in place of mayo and I tossed in a Tbsp of creamy horseradish. Unless I'm baking I rarely measure anything unless absolutely necessary, I kind of 'eyeball' it, so I may have ended up with a bit more or less mayo/mustard sauce in the end, but all-in-all .. I think it came out pretty well :) Especially with the addition of the horseradish! Seemed a bit more authentic that way. Would be even more authentic if ground brown mustard were used. I might try that next time.