In a blender, combine 1 cup of chocolate ice cream, ½ cup of Baileys Irish Cream, ¼ cup of milk, ¼ cup of vodka (if using), 2 tablespoons of chocolate syrup, and ¼ teaspoon of vanilla extract. Blend on medium speed for about 30–45 seconds, until the mixture is smooth and creamy.

After blending, taste your cocktail to find the perfect balance of sweetness and creaminess. Adjust as desired.

Take a tall glass and drizzle chocolate syrup along the inner sides, creating a beautiful design.

Pour the blended cocktail into the prepared glass, filling it right to the top.

Generously top your cocktail with whipped cream, allowing it to spill over the edges.

Sprinkle crushed Oreos or chocolate shavings over the whipped cream, then dust with cocoa powder.

Serve the cocktail immediately with a straw or spoon.