If you're looking for a way to add a pop of color and a dose of health benefits to your vegan cake, then blue spirulina frosting might be just what you need. Not only is this vibrant blue frosting visually stunning, but it's also packed with nutrients and antioxidants thanks to the blue-green algae that give it its unique hue.

Blue spirulina, also known as phycocyanin, is a type of protein-rich algae that grows in warm, alkaline waters around the world. It has been used for centuries in traditional medicine and is now gaining popularity as a superfood for its many health benefits, including its high content of antioxidants, anti-inflammatory properties, and potential immune-boosting effects.

To make a blue spirulina frosting for your vegan cake, you'll need a few key ingredients:

• 1/2 cup vegan butter or coconut oil, softened
• 2 cups powdered sugar
• 2-3 tablespoons non-dairy milk (such as almond, soy, or coconut)
• 1 teaspoon vanilla extract
• 1 teaspoon blue spirulina powder

To begin, cream the vegan butter or coconut oil in a large mixing bowl until it's light and fluffy. Gradually add in the powdered sugar, one cup at a time, and continue to mix until it's fully incorporated and the frosting is smooth and creamy.

Next, add in the non-dairy milk and vanilla extract and mix until the frosting is light and fluffy. If the frosting is too thick, you can add in more non-dairy milk a tablespoon at a time until it reaches your desired consistency.

Finally, add in the blue spirulina powder and mix until the frosting is evenly tinted with the vibrant blue color. You can adjust the amount of spirulina powder based on how intense you want the color to be.

Once your blue spirulina frosting is ready, you can spread it onto your vegan cake using a spatula or piping bag to create a beautiful and unique decoration. Not only will your cake look stunning, but it will also be packed with nutrients and health benefits that you won't find in traditional frosting.

In addition to being a delicious and healthy alternative to traditional frosting, blue spirulina frosting is also a great way to experiment with plant-based ingredients and create a dessert that's both visually stunning and nourishing for your body. So why not give it a try and add some vibrant blue color to your next vegan cake?