Preheat oven to 350 degrees F and line 2 rimmed baking sheets with silicone baking mats. Set aside.
Place dry cake mix, dry pudding mix, butter, eggs, vanilla, and salt into a large bowl and mix using a hand or stand mixer until combined.
Use a large cookie scoop to scoop 9 cookies** onto each of the prepared baking sheets.
Place 1 baking sheet in the fridge and bake the other in the preheated oven for 10-15 minutes, or until the insides are slightly underdone, but the tops and bottoms are cooked.
Remove from oven, cool for 2 minutes on the baking sheet, then remove cookies and place onto a wire baking rack to continue cooling.
Repeat with remaining baking sheet.
Cool completely before topping with frosting and enjoying!
Serve room temperature or chilled.
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