
I used 2 tablespoons sugar in the recipe for a spicy/mild flavor. For spicier jalapenos use 1 tablespoon sugar and for less spicy jalapenos use 3 tablespoons sugar. The more sugar you use, the more heat will be absorbed.
Combine the vinegar, water, garlic, sugar, and salt in a medium pot and bring to a boil. Add jalapeno slices, stir, and remove from heat.
Let sit for at least 8 minutes then use tongs to remove the jalapenos from the pot to a jar; cover with the brining liquid to fill the jar.
Store in the fridge for up to two months.