Cucumber Sauce: put 1 part sugar + 1/2 part water + 1/2 part vinegar in a small sauce pan. Cook over medium heat until the sugar dissolved and the sauce thicken as syrup. Cool off.
Peel 1/2 cucumber and remove seeds, dice into small cubes.
Pour sauce over cucumber and refrigerate until serve. Top with some crushed roasted peanut when served.