Preheat oven to 325-degrees. Place 1 cup of caramel chips in a microwave safe bowl. Microwave on 50% power in short increments, 20-25 seconds, and stop to stir between passes until the chips blend smoothly. Set aside to cool.
In a large mixing bowl, beat together both sugars, butter, vanilla extract, and eggs until they're creamy. Mix in the melted chips. Stir in flour, baking soda, and cream of tartar. Fold in the remaining caramel chips, chocolate chips, and chopped pecans.
Use a tablespoon cookie scoop or spoon to place dough in rounded lumps on cookie sheet. Bake 10 to 12 minutes, until the tops just begin to turn light golden brown. Cool on the sheet for several minutes, then move to a rack to cool.
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