Preheat the oven to 350 degrees. Spray non-stick cooking spray all over the bottom of a 9x13 baking pan.
In a bowl with an electric mixer, beat butter and sugar until smooth and creamy.
Add eggs and vanilla, mix until fully incorporated.
Add flour, baking soda, and salt. Mix until just combined.
Stir in white chocolate chips and sprinkles.
Using a rubber spatula, spread batter evenly in the pan.
Bake the blondies 25 to 30 minutes, or until the center is no longer runny when tested with a wooden skewer.