Preheat oven to 350°F. Line 2 large baking sheets with parchment paper and set aside.
In a large bowl, combine the cake mix and baking powder until well combined.
15.25 ounces Strawberry Cake Mix, 1 teaspoon baking powder
In a separate smaller bowl, whisk the eggs, oil, and vanilla together by hand.
2 large eggs, ⅓ cup vegetable oil, ½ teaspoon pure vanilla extract
Pour the egg mixture into the bowl with cake mix and stir with a spoon until a dough forms. Be sure to fully combine. Mix in the white chocolate chips.
1 cup white chocolate chips
Using a small portion scoop, drop rounded balls of the dough onto your baking sheet. These cookies flatten out quite a bit, so make sure the balls are taller than they are wide, and give them quite a bit of space between each cookie.
Bake for 9-10 minutes. Do not let them brown in the oven. They will appear slightly undercooked, but that is a good thing. They will firm up and flatten as they cool. When you take them out, you can add a couple more white chocolate chips to the top to make them look pretty (this is a little food blogger trick!)
Allow to cool for at least 10 minutes.