Preheat your oven to 400°F (200°C) and coat a 9x13 inch baking pan with cooking spray.

Crush 1.5 boxes of vanilla wafers in a resealable plastic bag until fine crumbs form. Set aside 1 cup for later.

Mix remaining crushed wafers with ¾ cup melted butter and press into the bottom of the prepared pan. Bake for 5 minutes until lightly golden.

Whisk together 1 cup flour, ½ teaspoon baking soda, ¼ teaspoon salt, 1 cup sugar, and 1 package pudding mix in a bowl.

In another bowl, beat 2 eggs, 1 teaspoon vanilla, and ¼ cup melted butter. Fold this wet mixture into the dry ingredients until just combined.

Gently fold in 1 cup white chocolate chips and reserved crushed wafers.

Spread the batter over the baked crust, smoothing the top, and bake for 15-20 minutes until golden brown.

Allow to cool in the pan on a wire rack for 30 minutes before slicing into squares.