Halve lengthwise, seed and cut cucumber into 1 inch pieces. In a bowl, toss the cucumber with 1 Tbsp salt and let it stand for 15 minutes. Rinse the cucumber under running cold water and in a bowl combine it with 1/2 cup water, grated carrot, 2 scallions sliced thin, 1 minced garlic clove, red pepper flakes and cayenne. Let the mixture stand, uncovered at room temperature stirring several times, for at least 3 days, transfer it to a jar and chill it. The pickle keeps several days.
MAKES: about 3 cups