Start by preheating your oven to 350°F. Then, get a baking sheet and line it with parchment paper. Set it aside for later.
In a large mixing bowl, add the softened butter, granulated sugar and strawberry Jell-O mix. Cream them together until the mixture is light and fluffy.
Next, add the eggs one at a time. Make sure that each one is mixed in well. Once they are, add the vanilla extract.
In a separate bowl, you're going to mix together the dry ingredients. Take the the all-purpose flour, cheesecake flavored instant pudding mix, baking powder, and salt. Whisk all of them together.
Add the whisked dry ingredients to the wet mixture. You want to mix them all together until they are combined. You don't need to overmix.
Gently fold in the white chocolate chips. Then, check the consistency of the dough. If it feels too dry, add some milk. Add a tablespoon at a time, going slowly, until you get the consistency you want.
For this step, you have the option of using a cookie scoop or your hands. Whichever you choose, you're going to want to form dough balls that are about 1.5" in size. Place each one on the baking sheet you prepared earlier, spacing them apart evenly.
Place the baking sheet in the preheated oven and bake for 10-12 minutes, or until the edges of the cookies are lightly golden.
Once baked, you need to give the cookies time to cool off. A few minutes on the baking sheet should do the trick. Then, transfer them to a wire rack to cool completely.