Although the bottles have liters written on them, one milliliter=one gram, is fairly close. This does not need to be exact. Weigh and tare an empty bottle on the scale. The Ranch Dressing bottles are larger so I use those to combine and to serve the dressings.

Pour half of one Ranch Dressing bottle into an empty or almost empty Ranch Dressing bottle. Pour half of the Italian Dressing into the same bottle. Then add the remaining amount into the other half-empty Ranch Dressing bottle.

Pour the rice vinegar into the empty bottle of Italian Dressing which weighs 50g, shake well and then add half to each of the filled bottles.

Shake each bottle well and store in the refrigerator.

If you prefer it to be even milder in taste beat 1 cup or 225 grams of mayonnaise and add to the mixture. You will need to use a bowl to make the whole mixture, because mayonnaise is not easy to pour into a bottle.