1 red onion, halved and sliced thin
1 cup distilled white vinegar
⅓ cup sugar
¼ teaspoon Salt
Place onion in medium bowl. Bring vinegar, sugar, and salt to simmer in small saucepan over medium-high heat, stirring occasionally, until sugar dissolves and the vinegar just comes to a boil. Pour it over the onions and cover loosely. Let onions cool completely, about 30 minutes.
