Pickled Red Onions with Jalapenos and Red Chili Flakes

Ingredients:
2 medium red onions thinly sliced
2 jalapenos sliced (be careful not to touch your eyes until you thoroughly wash your hands)
1 tbsp red chili flakes
1 ½ cups of white vinegar
2 tbsps kosher salt
2 tbsps white sugar
About 6 cups of water
Equipment:
3 mason jars-300-400 ml
Pot to boil water
Colander
Bowl that fits colander
Whisk
Measuring cup
Measuring spoon
Directions:
Slice the onions and jalepenos. Set the jalepenos aside and place the onions in a colander.
Bring approximately 6 cups of water to a boil.
Set the colander containing the sliced onions in a bowl. Pour the hot water over top of the onions and let sit for 1 minute. (This will take the edge off of the onion flavor.)
Once drained, distribute the onions evenly among 3 jars.
In a measuring cup, add 1 ½ cups of white vinegar and 1 ½ cups of the boiling water (collected in the bowl).
Add 2 tbsps kosher salt and 2 tbsps sugar to measuring cup and whisk until mixture becomes clear.
Divide the sliced jalapenos evenly among 2 jars.
In the third jar, add the 1 tbsp of red chili flakes, then cover with brine liquid.
Pour the remaining 3 cups of boiling water evenly into all 3 jars.
Place lids on jars and store in refrigerator to cool overnight. Enjoy!
Substitutes : Just onions, add mango, red Thai chili or garlic