In a medium Dutch oven, bring 3 cups water and ½ teaspoon salt to a boil. Add barley, stirring to combine. Reduce heat to medium-low, cover, and simmer, 45 to 55 minutes. Remove from heat. Rinse with cold water, and drain. Transfer to a large bowl; cover and refrigerate for at least 30 minutes.
For dressing: In a medium bowl, whisk together vinegar, apple juice, brown sugar, mustard, cinnamon, cloves, and remaining ½ teaspoon salt. Slowly whisk in olive oil until well combined.
In large bowl with chilled barley, combine apples, chard, bacon, pecans, and half of dressing. Cover and refrigerate for 1 hour or until ready to serve. Serve with remaining dressing.
Recipe by Southern Lady Magazine at https://southernladymagazine.com/rainbow-chard-and-barley-salad-recipe/