If you want to feel like a mixologist wizard, this galaxy cotton candy lemonade cocktail is your ticket. I served it as the welcome drink at a Wonderland-themed party, and it might be my favorite creation yet. Scoop the bright blue butterfly pea granita into each glass, then pour the gin, elderflower and cotton candy grape lemonade over it. Instead of turning green, the drink transforms into a striking purple the moment the lemon juice touches the granita — pure Wonderland magic.
Table of Contents
- The Magic Ingredient: Butterfly Pea Flowers
- What Are Butterfly Pea Flowers?
- What Do They Taste Like?
- The Science: Why Does the Cocktail Change Color?
- The Butterfly Pea Granita
- The Cotton Candy Grape Lemonade
- How to Serve: Wonderland Edition
- Make it a Mocktail
- Frequently Asked Questions
- Printable Drink Me Tags
- Recipe: Galaxy Cotton Candy Lemonade Cocktail
The Magic Ingredient: Butterfly Pea Flowers
What Are Butterfly Pea Flowers?
Butterfly pea flowers come from a vine native to Southeast Asia and are traditionally steeped to make a strikingly blue herbal tea. The brewed liquid turns a vivid cobalt blue that’s perfect for color-changing drinks and desserts.
What Do They Taste Like?
Despite the bright color, the flavor is subtle: mild, earthy and slightly floral — similar to a light green tea or chamomile rather than sweet or fruity. It works best as a visual star in a cocktail paired with naturally sweet grapes and bright lemon.
The Science: Why Does the Cocktail Change Color?
The color change isn’t just mixing pigments. Butterfly pea flowers contain anthocyanins, natural pigments that shift with pH. The granita starts deep blue; when acidic lemon juice hits it, the pH drops and the drink instantly shifts to a vivid purple. It’s a simple and dramatic chemistry trick you can drink.
The Butterfly Pea Granita
Granita is a rustic Sicilian frozen dessert made from water, sugar and flavor. For this drink the brewed butterfly pea infusion is the flavored base.
Simmer water, sugar and the dried flowers until the sugar dissolves. Cool, strain through a fine mesh strainer into a shallow baking pan, then freeze uncovered until solid, about 4–6 hours. Once frozen, use a fork to scrape the surface into fluffy shards.
If you prepare it ahead of time, transfer the shaved granita to an airtight container and keep it in the freezer. It holds well for weeks; if it clumps, fluff with a fork before serving.
The Cotton Candy Grape Lemonade
Cotton candy grapes truly do taste like cotton candy thanks to selective breeding that highlights a vanilla-like sweetness. That intense natural sugar pairs beautifully with fresh lemon, so you often don’t need extra simple syrup.
To make the lemonade: blend washed grapes, fresh lemon juice and a small amount of water until smooth, then strain through a fine mesh strainer to remove skins and pulp. If you can’t find cotton candy grapes, use sweet green grapes (Autumn Crisp is a good choice) and add a splash of simple syrup or agave if needed.
How to Serve: Wonderland Edition
This is an ideal welcome cocktail — serve it as guests arrive so they can watch the color change. Pair with bright, fresh appetizers and a creamy bite for contrast.
How to Batch for a Party
The granita and lemonade recipes make plenty, but the cocktail recipe below is for one drink. To scale for six guests:
- Make the butterfly pea granita and the cotton candy lemonade ahead of time.
- In a pitcher, combine 9 oz gin, 3 oz elderflower liqueur and 12 oz cotton candy lemonade. Keep chilled.
- Scoop about 1/2 cup blue granita into each glass, then pour the chilled gin mixture over the top to reveal the color change.
Make it a Mocktail
You don’t need to alter the granita. The color change is driven by the acid in lemon juice, not the alcohol. For a nonalcoholic version, replace the 1.5 oz gin and 0.5 oz elderflower liqueur with 2 oz sparkling water and a splash of elderflower syrup, or simply use chilled lemonade. The color-changing magic remains intact.
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Frequently Asked Questions
Yes. Powdered butterfly pea is concentrated — about 1/2 teaspoon per 2 cups of water will give a deep blue color. The powder dissolves, so you can freeze it without straining.
Yes. After shredding the frozen granita transfer it to an airtight container and store in the freezer. It keeps well for a few weeks; fluff with a fork before serving.
Absolutely. The color change comes from the acid in lemon juice reacting with the butterfly pea flower pigments. Skip the alcohol and use sparkling water or lemonade with elderflower syrup for the same effect.
Yes. Blend and strain the juice, then refrigerate in a covered container for a few days. Juice may separate; give it a good stir before mixing the drinks.
Printable Drink Me Tags
For the full Wonderland look, use heavy cardstock so the tags don’t warp from condensation. Cut them out and attach with mini clothespins or ties to the rim of each glass before pouring the batched cocktail.
6 drinks
Equipment
- saucepan
- blender
- fine mesh strainer
- shallow baking pan (9×13 or quarter sheet)
- fork
- cocktail shaker or pitcher
- Printable Drink Me Tags (optional)
Ingredients
Butterfly Pea Granita
- 2 cups water
- 1 tbsp butterfly pea flowers
- 1/3 cup sugar
Cotton Candy Lemon Juice
- 1 lb cotton candy grapes, cleaned
- 1/2 cup water
- 2 lemons, juiced
Galaxy Cocktail (Makes 1)
- 1.5 oz gin
- 0.5 oz elderflower liqueur
- 2 oz cotton candy lemon juice
- butterfly pea granita
- ice
Instructions
- Make the butterfly pea granita: In a saucepan combine water, butterfly pea flowers and sugar. Simmer just until the sugar dissolves. Remove from heat, cool slightly, then strain into a shallow pan. Freeze uncovered until solid, about 4–6 hours. Shred with a fork until fluffy.
- Make the cotton candy lemon juice: Combine grapes, 1/2 cup water and lemon juice in a blender. Blend until smooth, then strain through a fine mesh strainer to remove skins and pulp.
- Assemble the drink: In a cocktail shaker or pitcher combine gin, elderflower liqueur, cotton candy lemon juice and ice. Shake or stir to chill.
- Serve: Spoon about 1/2 cup butterfly pea granita into the bottom of a glass. Pour the cocktail mixture over the granita and watch it turn from blue to vivid purple.
- Batching for six: Multiply the single-cocktail liquids by six: 9 oz gin, 3 oz elderflower liqueur, 12 oz cotton candy lemon juice. Stir in a chilled pitcher. Add ice and stir again before pouring over granita in individual glasses so guests can watch the color change.
Kitchen Cam
Optional video demonstration available in the original post.
Nutrition
Calories: 255 kcal • Carbs: 34 g • Protein: 1 g • Fat: 0.3 g • Sugar: 29 g
Nutrition information is an approximation.
Additional Info
Course: Drinks • Cuisine: American
Keywords: butterfly pea granita, color changing drink, cotton candy grape cocktail, elderflower drink, gin cocktail
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