This article dives into the unique and dazzling Blue Moon Lime Tart — a vegan treat that pairs tangy lime and vibrant blue spirulina for a fresh, Instagram-worthy dessert. Whether you’re planning a weekend get-together or just want to try a healthy, no-bake tart with a tropical twist, this recipe is a showstopper.

PART 1: Why You’ll Love This Blue Moon Lime Tart

– Aesthetic Appeal Meets Nutrient-Rich Ingredients

The natural, sky-blue hue of spirulina against the zesty lime layer makes this tart not just tasty but a conversation starter at every table.

– 100% Vegan & Allergy-Friendly

No dairy, no eggs—just pure plant-based goodness. The tart is also gluten-free if you choose gluten-free cookies for the crust.

PART 2: Ingredients Breakdown: What You’ll Need

– Cookie Crust Components

You’ll need just two simple ingredients: vegan cookies and melted vegan butter (or coconut oil). Opt for crispy cookies like digestives or graham crackers.

– Tangy Lime Layer

Coconut milk, agave syrup, lime juice, and agar powder make up the zesty middle. Agar replaces gelatin, making it ideal for vegans.

– Stunning Blue Layer

Spirulina powder adds that mystical blue. Paired with coconut milk and vanilla, it balances beautifully with the lime.

PART 3: How to Make the Cookie Crust Perfectly

– Crushing Cookies the Easy Way

Use a food processor or a freezer bag and rolling pin to grind cookies into fine crumbs.

– Binding with Butter

Mix the crumbs with melted vegan butter. Coconut oil also works if you’re looking for a tropical touch.

– Pressing and Setting

Firmly press into a tart pan and chill. Want it crispy? Pre-bake at 350°F (175°C) for 8–10 minutes.

PART 4: Crafting the Lime Layer Step-by-Step

– Activating Agar Powder

Whisk the agar into coconut milk and bring to a boil. Simmer until it thickens—this step is crucial for setting.

– Adding Sweetness and Citrus

Once removed from heat, add agave syrup and fresh lime juice. This combo delivers a sweet, tangy punch.

– Layering & Cooling

Pour the mix into your crust and let it chill for about 1 hour. It should feel firm to the touch before adding the blue layer.

PART 5: Making the Blue Spirulina Layer

– Mixing Spirulina Smoothly

Dissolve blue spirulina in a little water before mixing to avoid clumps.

– Heating and Setting

Heat coconut milk and agar, then add sweetener and vanilla extract. Finally, stir in the spirulina mix.

– Final Layering

Gently pour over the lime layer. Set it again for at least 2 hours.

PART 6: Optional Garnishes & Serving Tips

– Berry Beautiful

Top with blueberries, blackberries, and lime slices to enhance taste and aesthetics.

– Slice Like a Pro

Use a hot, sharp knife for clean slices. Wipe between cuts for best presentation.

PART 7: Common Ingredient Substitutions

– No Spirulina? Try Butterfly Pea

Butterfly pea flower gives a similar blue hue and is another antioxidant-rich option.

– Sweetener Swaps

Use maple syrup, coconut nectar, or even stevia for sugar-free diets.

PART 8: Storage & Make-Ahead Tips

– Fridge Life

Store in an airtight container in the refrigerator for up to 4 days.

– Freezing the Tart

Wrap tightly and freeze for up to 2 months. Thaw overnight in the fridge.

PART 9: Nutritional Highlights of the Blue Moon Lime Tart

– Healthy Fats and Antioxidants

Thanks to coconut milk and spirulina, this tart is packed with MCTs and plant-based protein.

– Low-Glycemic Sweeteners

Agave and coconut-based sweeteners make this dessert blood-sugar friendly.

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FAQs About Blue Moon Lime Tart

What makes this tart blue?

The blue color comes from blue spirulina, a natural algae-based superfood rich in antioxidants.

Can I make this tart without agar?

You could substitute agar with pectin or cornstarch, but consistency may vary. Agar is the most reliable plant-based setting agent.

Is this tart gluten-free?

Yes—just make sure to use gluten-free cookies for the crust.

How long does it take to set in the fridge?

The lime layer sets in 1 hour, and the blue layer needs about 2 hours to fully firm up.

Can I use lemon instead of lime?

Absolutely. Lemon offers a slightly different citrus profile but works well in this recipe.

What type of coconut milk should I use?

Use full-fat canned coconut milk for best texture. Avoid carton versions which are often diluted.

Conclusion: A Tart Worth Showing Off

The Blue Moon Lime Tart isn’t just another dessert—it’s a conversation piece with a delicious citrus kick and a surreal blue hue. Vegan, allergen-friendly, and visually stunning, it’s a recipe you’ll want to make again and again.

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