2 cups chocolate ice cream
1 cup cold milk
2 tablespoons chocolate syrup
1 tablespoon cocoa powder
1/2 teaspoon vanilla extract
Whipped cream, optional
Chocolate shavings or chips, optional
Add chocolate ice cream, milk, chocolate syrup, cocoa powder, and vanilla extract to a blender
Blend until smooth and creamy
Add more milk for a thinner milkshake
Add more ice cream for a thicker milkshake
Pour into a glass
Top with whipped cream and chocolate shavings if desired