Line an 8x8 or similar size pan with parchment or foil. Spray lightly with non-stick cooking spray. Set aside.

In a large saucepan, heat the sweetened condensed milk over low heat for about 5 minutes.

Add in the white chocolate chips and stir to combine.

Once the mixture is combined and smooth, add in the sugar cookie mix. Stir well

While still heating over low heat, add in the butter and vanilla. Stir until smooth.

Remove from the heat and pour into the prepared pan. Spread into an even layer.

Decorate with the sprinkles before the fudge cools. Gently press to adhere the sprinkles to the fudge.

Allow to set at room temperature for about 2 hours or in the fridge for about 30 minutes or until set.