Add 2 TBSP apple cider vinegar, ¾ tsp honey, 1 TBSP chopped shallot, ½ tsp mustard to a bowl or container. Whisk to combine.
Slowly drizzle in the ¼ cup of olive oil, whisking constantly. An electric whisk (or milk frother) will whisk the dressing together even easily if you have one.Set aside while preparing the salad.
For the Salad
Add the spinach to a large bowl, along with the sliced apples. Pour over half of the the dressing and toss to coat. Season with salt and pepper. Add more dressing if needed. Different containers of spinach are different weights at the store so you can use larger up to 5-6 cups of salad for this recipe.
Top the salad with shaved Parmesan (as much as you wish) and lightly toasted pecans. Serve immediately.
For extra protein, you can serve grilled chicken with this salad.
Notes
Salad Substitutions
You can use mixed greens instead of spinach
Pears can be subbed for apples
Toasted walnuts or almonds can be swapped out for pecans
Asiago or pecorino Romano can be used in place of parmesan
Finely chopped red onion can be swapped for shallots