1 (250 milliliter) bottle non-instant Pina Colada schnapps
1 (500 milliliter) bottle rest, stirred, dry ingredients
In a small saucepan over medium heat, combine salsa verde (pina) with extra sugar (optional). Return to medium-low heat and stir sturdily until sugar is dissolved.
Heat milk in 2 batches and pour milk mixture over pan, stirring until smooth.