Add 1.5 cups whole milk, 2 cups chocolate ice cream, 3 tbsp chocolate syrup, 1 tbsp granulated sugar, 0.5 tsp vanilla extract, and 1 tbsp unsweetened cocoa powder to a blender.

Blend until smooth

Secure the lid and blend on medium-high for 30–45 seconds until the mixture is smooth and homogenous. Scrape down the sides with a spatula if needed and blend an additional 10–15 seconds.

Add-ins & Texture

Adjust thickness

Add 4 ice cubes to the blender and pulse 3–4 times to chill and thicken the shake. If you prefer a thicker shake, add 1 more ice cube or 2 more tablespoons of ice cream; for thinner, add 2–3 tbsp milk.

Add chocolate chips

Add 2 tbsp mini chocolate chips and pulse once or twice so they remain slightly chunky for texture. Do not over-blend if you want chips to remain visible.

Serve & Garnish

Prepare glass

Drizzle 1 tbsp extra chocolate syrup inside the serving glass, rotating the glass to create streaks.

Pour and top

Pour the shake into the prepared glass. Top with 1/2 cup whipped cream and sprinkle 1 tbsp chocolate shavings or sprinkles over the cream.

Final touch

If desired, garnish with a straw and a few extra mini chocolate chips on top. Serve immediately.