01 - Heat a dry skillet over medium heat and toast pecan halves for 3 to 4 minutes, stirring frequently, until fragrant and lightly browned. Remove from heat and let cool.
02 - Whisk together extra-virgin olive oil, apple cider vinegar, maple syrup, Dijon mustard, minced garlic, salt, and black pepper in a small bowl or jar until emulsified.
03 - Place chopped kale in a large mixing bowl. Drizzle with 1 teaspoon of the vinaigrette and massage gently with hands for 1 to 2 minutes until the leaves darken and soften slightly.
04 - Add toasted pecans, dried cranberries, thinly sliced red onion, apple slices, and crumbled feta cheese (if using) to the massaged kale.
05 - Pour the remaining vinaigrette over the salad mixture and toss thoroughly to evenly coat all ingredients.
06 - Serve immediately for crisp texture, or allow the salad to rest for 10 to 15 minutes to enhance flavor melding.