Here’s a fun, simple way to make a homemade Grimace -style shake that nails the purple color and berry-vanilla flavor, plus some context on why it’s a trending topic lately.

How to Make Grimace Shake

Quick Scoop

A Grimace shake is basically a thick vanilla milkshake turned bright purple with blueberries and raspberries (or blueberry syrup), inspired by McDonald’s limited-edition Grimace Birthday Shake that went viral in 2023 and after.

Classic Copycat Grimace Shake (Fast Version)

This version focuses on easy supermarket ingredients and that signature purple color.

Ingredients

  • 1½ cups vanilla ice cream (about 3 big scoops)
  • 1 cup cold milk (whole milk for extra creaminess)
  • 1 cup frozen blueberries (key for purple color)
  • ½ cup raspberries, fresh or frozen
  • Optional color boost: a few drops purple food coloring OR a pinch of blue spirulina powder
  • Optional toppings: whipped cream and rainbow sprinkles

Instructions

  1. Add to blender
    • Add vanilla ice cream, milk, blueberries, raspberries, and any color boost (food coloring or spirulina) to a blender.
  1. Blend until smooth
    • Blend on high until the berries are completely broken down and the shake looks thick, creamy, and evenly purple.
  1. Adjust texture
    • Too thick? Add a splash more milk and blend.
    • Too thin? Add an extra scoop of ice cream and blend again.
  1. Serve
    • Pour into 1 large or 2 smaller glasses, top with whipped cream and sprinkles, and serve right away.

Deluxe “TikTok-Style” Grimace Shake

Some newer recipes layer in blue spirulina for a brighter, almost neon purple and use mixed berries for more flavor.

Ingredients

  • 3 scoops vanilla ice cream
  • 1 cup frozen blueberries
  • ½ cup fresh raspberries
  • ½ cup milk (add more for a thinner shake)
  • ½ teaspoon blue spirulina powder (for color)
  • Whipped cream and sprinkles for garnish

Steps

  1. Let ice cream soften a couple of minutes so it blends easier.
  1. Add ice cream, blueberries, raspberries, milk, and spirulina to a blender.
  1. Blend until silky and uniformly purple.
  1. Pour into glasses, top with whipped cream and sprinkles, add a straw, and enjoy.

Super-Simple Syrup Version

If you don’t want to deal with whole fruit, a blueberry-syrup version is almost effortless.

Ingredients

  • 1 liter vanilla ice cream
  • 250 ml full‑fat milk
  • 3–4 tablespoons blueberry syrup (such as Monin)

Steps

  1. Add vanilla ice cream, milk, and blueberry syrup to a blender.
  1. Blend until thick, smooth, and a light purple color.
  1. Taste and add more syrup if you want stronger berry flavor or a deeper color.

Why Grimace Shake Became a Trending Topic

  • McDonald’s released the limited-edition Grimace Birthday Shake for Grimace’s anniversary, a purple berry-flavored shake that quickly sold out in many places.
  • On TikTok, YouTube, and Roblox content, creators turned it into a surreal “horror-comedy” meme where drinking the shake leads to dramatic or spooky scenes, which boosted the trend.
  • Food blogs and recipe sites now publish “copycat” and “DIY” Grimace shake recipes, often with berries and spirulina, so people can recreate the look and flavor at home even after the promo ended.

Quick HTML Table for Reference

html

<table>
  <thead>
    <tr>
      <th>Version</th>
      <th>Main Flavor Base</th>
      <th>Color Source</th>
      <th>Pros</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Classic copycat</td>
      <td>Vanilla ice cream, blueberries, raspberries [web:1][web:5]</td>
      <td>Frozen blueberries, raspberries [web:1][web:3][web:5]</td>
      <td>Close to McDonald's style, thick and creamy [web:5]</td>
    </tr>
    <tr>
      <td>Deluxe TikTok-style</td>
      <td>Vanilla ice cream, mixed berries [web:3]</td>
      <td>Blue spirulina + berries for vibrant purple [web:3][web:10]</td>
      <td>Very bright color, “aesthetic” for social posts [web:3][web:10]</td>
    </tr>
    <tr>
      <td>Syrup shortcut</td>
      <td>Vanilla ice cream, milk [web:9]</td>
      <td>Blueberry syrup [web:9]</td>
      <td>Fast, consistent color and flavor, no seeds [web:9]</td>
    </tr>
  </tbody>
</table>

TL;DR:
Blend vanilla ice cream, milk, and purple-making berries (blueberries + raspberries) until smooth; boost color with spirulina or food coloring, top with whipped cream and sprinkles, and you’ve got a homemade Grimace shake ready for your next “Quick Scoop” update.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.