Japanese Ramune (Marble Soda)

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Japanese ramune in a blue marble-stopper bottle beside a small glass of clear citrus soda on a summer table.

Ramune is Japan’s recognizable marble-stopper soda, known for its cool citrus flavour and distinctive blue glass bottle.

Make a light lemon-lime syrup, chill it thoroughly, and combine it with sparkling water just before serving so the drink stays lively.

Chill the syrup and sparkling water first; adding warm syrup to the glass makes the ice melt and flattens the soda.

Serving Suggestions

Serve very cold over ice with lemon or lime wedges on warm afternoons.

Japanese ramune being poured from a blue marble-stopper bottle into an ice-filled glass on a quiet summer table.

Recipe Notes

The syrup keeps refrigerated for up to one week. Mix individual glasses just before serving.

Japanese ramune in a blue marble-stopper bottle beside a small glass of clear citrus soda on a summer table.

Japanese Ramune (Marble Soda)

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A bright, citrusy Japanese marble soda made with chilled sparkling water, lemon, lime, and simple syrup.
Prep Time 15 minutes
Total Time 15 minutes
Servings: 4 servings
Course: Drinks
Cuisine: Japanese
Calories: 105

Ingredients
 
 

Citrus syrup
  • 1/2 cup granulated sugar
  • 1/2 cup water
  • 2 tbsp fresh lemon juice
  • 1 tbsp fresh lime juice
To serve
  • 4 cups chilled sparkling water
  • 2 cups ice cubes
  • 4 wedges lemon or lime optional garnish

Equipment

  • Small saucepan
  • Fine-mesh strainer
  • Glass bottle or jar
  • Tall glasses
  • Measuring cups

Method
 

Make the syrup:
  1. Combine the sugar and water in a small saucepan and warm over medium heat, stirring until the sugar dissolves.
  2. Remove from the heat, stir in the lemon and lime juices, and cool completely. Strain into a clean bottle and chill.
Mix the ramune:
  1. Fill four glasses with ice. Add 2 tablespoons of citrus syrup to each glass.
  2. Top each glass with chilled sparkling water and stir gently once. Garnish with lemon or lime and serve immediately.

Nutrition

Calories: 105kcalCarbohydrates: 27gSodium: 8mgSugar: 26g

Notes

  • Use plain sparkling water so the citrus syrup remains the main flavour.
  • For a bottled presentation, pour the finished soda into clean chilled glass bottles and serve promptly.