Cool Sesame Cucumbers

3 regular or English cucumbers (halved and sliced, seeds
   removed if regular cucumbers)
½ Vidalia onion, sliced
½ cup white vinegar
½ cup rice vinegar
½ cup water
2 Tbsp. sugar
1/4 tsp. red pepper flakes
1 tsp. sesame oil
Black pepper to taste
1 tsp. toasted sesame seeds (optional)

Put cucumber slices into a bowl and toss with remaining ingredients.

Alternative:  

1Tbsp. Rice vinegar

1Tbsp. Soy sauce

1 tsp. grated ginger

1 tsp. chile pepper flakes

1/2 tsp. Sugar

2 cups thinly sliced cucumbers

1/4 cup red or sweet onion

1 Tbsp. toasted sesame seed

Whisk dressing ingredients together and toss with vegetables and sesame seeds.