For a sweeter flavor, try using Fuji or Gala apples. If you don't have fresh thyme, you can substitute with ½ teaspoon of dried thyme. To make the salad ahead of time, prepare the kale and dressing separately and combine just before serving to prevent the kale from becoming soggy. Add some toasted nuts or seeds for extra crunch and nutritional value (e.g., walnuts, pecans, pumpkin seeds).