Place sugar thru cider vinegar in a mason jar. Cover tightly and shake well. Season to taste with salt & pepper. Let chill at least 1 hour before serving so flavors meld together. Can be stored in the refrigerator for up to 2 weeks.
In a large serving bowl, add spinach, strawberries and almonds. Add about ⅓ of the dressing. Mix well and add a little more if needed. Do not overdress.
Recipe by Cook Eat Run at https://cookeatrun.com/2014/04/15/strawberry-spinach-salad-poppy-seed-dressing/