01 - Heat a dry skillet over medium heat. Add pecan halves and toast for 3–4 minutes, stirring frequently until fragrant and lightly browned. Transfer to a plate and allow to cool completely.
02 - Place chopped kale in a large mixing bowl. Drizzle with 1 teaspoon olive oil and a pinch of salt. Massage the leaves firmly with your hands for 1–2 minutes until they darken in color and become tender to the touch.
03 - In a small bowl or mason jar, combine olive oil, apple cider vinegar, maple syrup, Dijon mustard, salt, and black pepper. Whisk vigorously or shake until fully emulsified and thickened slightly.
04 - Add toasted pecans, dried cranberries, sliced red onion, crumbled feta cheese if using, and apple slices to the massaged kale. Toss gently to distribute ingredients evenly.
05 - Pour the maple vinaigrette over the salad and toss thoroughly until all leaves are coated. Taste and adjust seasoning with additional salt or pepper as desired. Serve immediately or allow to rest for 10 minutes for flavors to meld.