01 -
Line 8x8-inch baking dish with parchment paper.
02 -
Heat sweetened condensed milk in saucepan over medium-low heat.
03 -
Stir in sugar cookie mix until combined.
04 -
Add white chocolate chips, butter and vanilla. Stir until smooth.
05 -
Pour into pan, top with sprinkles. Let set 4 hours at room temperature or chill to speed up.
06 -
Cut into squares and serve at room temperature.