Step 1

In a small bowl, toss the sliced shallots with 1 teaspoon of the sugar and a pinch of the salt. Stir and let stand for 5 minutes.

Step 2

Slice the tomatoes into wedges, removing the hard cores.

Step 3

In another small bowl, mix together the cider vinegar and fish sauce with the remaining 2 teaspoons of sugar and the remaining salt. In a large bowl, toss the tomatoes with the cider vinegar mixture and wilted shallots. Sprinkle the chopped mint on top and serve.