• Cream together the butter , and sugar, for 2-3 minutes until it starts to get smooth. 3/4 cup unsalted butter , 1 1/2 cups granulated sugar,
• Add in the eggs and vanilla extract and stir until just combined. 2 large eggs, 1 tsp vanilla extract
• Add in the flour, cinnamon, cream of tartar, baking soda, and salt. Stir until combined. 3 cups all purpose flour, 1 tsp ground cinnamon, 1 tsp cream of tartar , 1 tsp baking soda , 1/2 tsp salt
• Add in the toffee bits and mix them into the cookie dough evenly. 1 cup toffee bits
• Cover the dough and place it in the fridge while the oven preheats
• Preheat the oven to 350 degrees Fahrenheit. Line two cookie sheets with parchment paper, or silicone liners, and set it aside.
• Scoop the dough by 1.5 to 2 TBS portions and roll them into balls.

For the Cinnamon Sugar Coating:

• Add the sugar and cinnamon to a small bowl, and whisk them together. 1/4 cup granulated sugar , 2 tsp ground cinnamon
• Roll the cookie dough balls into the cinnamon sugar mixture and place them on the prepared baking sheet, at least 3 inches apart.
• Bake for 10 to 12 minutes, or until the tops just start to crinkle and the edges are lightly golden.
• Let the cookies cool for 5 minutes on the cookie sheet, then transfer them to a cooling rack to cool completely.