Ingredients
Method
- Preheat the oven to 350 F. In a medium bowl, whisk together flour, salt, and baking soda. In a large bowl, mix together butter and both sugars until fluffy. Add in egg and vanilla extract and mix until smooth. Fold in the butterscotch chips and M&Ms.
- Evenly press the cookie dough into a greased 8-inch square baking dish. Bake for 20-25 minutes.