CookWithChel’s Substack

CookWithChel’s Substack

Breakfast

Blue Spirulina Smoothie

This one has been on repeat in our house lately. My kids are obsessed — partly because it tastes like a tropical vacation, and partly because it looks like something out of a fantasy movie.

Jun 24, 2026
∙ Paid

Serves 1-2 | Time: under 5 minutes


That color is completely natural, all from blue spirulina, which happens to be one of the most antioxidant-rich ingredients you can add to your diet. You’d never know it by how good this tastes.

Ingredients
  • 1 cup coconut milk

  • 1 scoop vanilla protein powder (I like whey, use plant-based to keep it dairy free)

  • 1 cup frozen pineapple

  • ½ cup frozen mango

  • ½ cup raw unsalted cashews

  • 1 teaspoon blue spirulina

  • dash of salt

  • ~ ½ cup ice

Instructions
  1. Add all ingredients to your blender and blend until completely smooth.

  2. Pour and enjoy.

NOTES

  • The cashews are the secret. They make this smoothie incredibly creamy without any dairy — don’t skip them.

  • Blue spirulina has almost no flavor on its own, so don’t let it intimidate you. It just makes everything beautiful with a major antioxidant boost.

  • Start with half a teaspoon of spirulina if you’re new to it, then work your way up. A little goes a long way for color.

  • Frozen fruit is key here — it keeps things thick and cold without watering it down with too much ice.

Tools + Ingredients I used for this

  • Blue Spirulina Powder - This is the one I use. USDA organic, neutral taste. A little goes a long way for color. I start with half a teaspoon and work my way up.

  • The Beast Mini Blender - This is the one I reach for every single day. Same great features as the Mega but compact, which makes it perfect for single servings and super easy to clean.

  • The Beast Mega Blender — A powerhouse blender that’s fully contained (no splatter!) and comes with a straw lid for easy on-the-go drinking. I have both sizes and this one’s great if you’re making larger batches.

  • My favorite Vintage Hobnail Glasses - these are beautiful but perhaps my favorite thing about them is they are hard to break!

xoxo,

Chelsea

If you like having a clean, printable version in your kitchen, I made one for you here 🤍

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