Preheat oven to 375ºF. In a bowl, add the butter and shortening. Using a mixer, blend until smooth then add the sugars and mix for at least 1-2 minutes. Mix in salt, vanilla extract, egg and vinegar
In a separate bowl, whisk together the baking soda, flour, ginger, cinnamon, nutmeg, and cloves. Add to the wet ingredients and mix on low until combined. If using, stir in the butterscotch chips
Scoop rounded tablespoons of dough onto a parchment lined baking sheet and bake for 8 minutes. Let cool then enjoy!