Cucumber Onion Salad - cooking recipe

Ingredients

2 large cucumbers
1 large onion
3/4 cup white vinegar
1 tablespoon apple cider vinegar
6 -8 tablespoons sugar
1/4 teaspoon crushed red pepper flakes, to taste (or more)
1 tablespoon sesame seeds, can be added but not necessary

Preparation

Slice the cucumbers and onion wafer thin. (I use a mandolin slicer). Place them in a large bowl that has a cover. Break up ther onion slices. Add rest of ingredients and mix up. I just use my hands to combine it all. Cover and place in refrigerator for atleast an hour.