Ultimate Skillet Cookie

Preheat oven to 350°F (180°C).

In a large bowl, whisk together flour, cream of tartar, cinnamon and baking soda until well mixed.

Melt butter in a 12-inch cast-iron skillet over medium heat, until butter is just melted. Remove from heat and stir in sugar. Stir in one egg at a time until emulsified. Stir in vanilla. Add flour mixture to skillet and stir until well mixed. Stir in dark chocolate, pecans, peanut butter cups and caramels. Sprinkle with cinnamon-sugar.

Bake for 20 to 25 minutes or until edge is golden brown and centre of cookie is set. Let cool in pan for 15 minutes. Sprinkle with flaked salt to taste. Cut into wedges and serve warm with ice cream.