STEP 2/5
Add condensed milk to the whipped cream and whip it for 1 minute using a hand mixer, then add chopped Oreo,
STEP 5/5
Add about 5 Oreos and grind finely for 2 minutes. You can add more or less Oreo as much as you like. Put it in a cup, squeeze the whipped cream, sprinkle chocolate syrup, and put the pistachio on top.
Prepare milk by freezing it completely in the freezer for at least 3 hours in advance.