Preheat oven to 350F degrees. Spray 11x7 baking pan with nonstick spray.

Combine well the first four ingredients in a large bowl.

Then, add the milk slowly. You want the batter to be as thick as possible; not runny.

Mix in the sprinkles and the white chocolate chips.

Pour the batter into the prepared baking pan. I like to add a few more sprinkles on the top.

Bake for 30 minutes until edges are beginning to brown. The top of the blondies will usually begin to crack slightly as well.

Allow to cool for at least an hour so the middle of the blondies can set. I normally like having them set closer to 2 hours.