BUTTERFLY G&T

Butterfly G&T color-changing gin and tonic cocktail — Top Hat Provisions

The Butterfly G&T is a classic Gin & Tonic built with Top Hat East India Tonic and Butterfly Truth Serum — a concentrated butterfly pea flower extract that turns the drink indigo blue, then shifts to violet and pink the moment citrus hits it. The color change happens right in the glass. The drink itself is crisp, botanical, and quinine-forward. The visual is just the bonus.

Color-Changing Built Gin & Tonic
Prep 2 m
Total 2 m
Yield 1 (10–12 oz)
ABV ~8–10% / 0.0%
Make it:
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Tonic format:
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The short version: Butterfly pea flower extract is naturally blue-purple. Add lime — which is acidic — and it shifts pink to violet in seconds. There's no dye, no trick. It's just pH chemistry doing its thing in front of your guests. The East India Tonic brings enough quinine backbone that the drink actually tastes like something, not just looks like something. That's the combination worth making.

Ingredients

Zero proof note: The float and color work identically without alcohol. Monday Zero Gin or Seedlip Spice 94 carry enough botanical structure to hold the drink together. Nobody at the table will know it's NA until you tell them.

⭐ East India Tonic Syrup 32oz
5x quinine concentrate — real botanicals, nothing artificial
Butterfly Truth Serum
Blue butterfly pea flower extract — color shift guaranteed

Method

  1. Add 1.5 oz gin to a tall highball glass.
  2. Fill the glass completely with ice.
  3. Pour 5–6 oz East India Tonic slowly down the side of the glass (can or soda gun).
  4. Combine 1 oz East India Tonic Syrup with 4–5 oz club soda or soda maker water. Pour slowly down the side of the glass.
  5. Float 1 oz Butterfly Truth Serum over the back of a spoon so it rests on top of the tonic.
  6. Do not stir — the indigo blue will bloom and shift as the drink is enjoyed.
  7. Garnish with a lavender sprig and dehydrated citrus.
  1. Add 1.5 oz zero proof gin alternative to a tall highball glass.
  2. Fill the glass completely with ice.
  3. Pour 5–6 oz East India Tonic slowly down the side of the glass (can or soda gun).
  4. Combine 1 oz East India Tonic Syrup with 4–5 oz club soda or soda maker water. Pour slowly down the side of the glass.
  5. Float 1 oz Butterfly Truth Serum over the back of a spoon so it rests on top of the tonic.
  6. Do not stir — the indigo blue will bloom and shift as the drink is enjoyed.
  7. Garnish with a lavender sprig and dehydrated citrus.
Pro move: Pour the tonic slowly down the side of the glass rather than straight over the ice. It slows the color shift so guests can watch the indigo blue bloom pink and violet in real time. That's the moment worth making.

Want to batch this for an event? Butterfly G&T 5-Gallon Batching Recipe →

More tonic builds: Italian G&T →  ·  Cucumber Aloe G&T →

Classic vs. East India Tonic? Full comparison →

🦋 Real butterfly pea flower — color shift guaranteed 🍸 3 ways to build the tonic ✨ Zero Proof option works identically
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Color-changing G&Ts made bar-quality at home.
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