How to Make Refrigerator Pickles: My Easy &amp - Chef YoYo

Ingredients

• 2 medium cucumbers, sliced thin (about 1 pound / 450 grams)
• 1 small onion, thinly sliced (optional)
• 1 cup distilled white vinegar (240 ml)
• 1 cup water (240 ml)
• ½ cup granulated sugar (100 g)
• 2 tablespoons kosher salt (30 g)
• 1 teaspoon mustard seeds
• 1 teaspoon black peppercorns
• 1/2 teaspoon red pepper flakes (adjust to taste)
• 1 garlic clove, peeled and sliced