Tulo

Sonic Ocean Water Recipe

A glass of pale blue Sonic-style ocean water filled with nugget ice, a straw resting on top and condensation beading on the outside of the glass.
Photo by Kristina Paukshtite on Pexels

A homemade coconut simple syrup gives the same round, sweet coconut flavor as the drive-in version without needing a bottle of flavored syrup, and pouring it over nugget ice (rather than regular cubes) is what actually makes the texture taste right.

Prep
10 min
Cook
5 min
Total
15 min
Servings
4

Ingredients

Servings4
  • 1/2 cup granulated sugar
  • 1/2 cup water, for the syrup
  • 1 teaspoon coconut extract
  • 6 drops blue food coloring
  • 4 cups lemon-lime soda, chilled
  • 4 cups nugget or crushed ice

Nutrition per serving

Calories
200
Protein
0g
Carbs
51g
Fat
0g

Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.

Need different units or a different yield? Try our Conversion Calculator →

Instructions

  1. 1Combine the sugar and water in a small saucepan over medium heat, stirring until the sugar fully dissolves, about 2-3 minutes. Do not let it boil hard, you just want a clear syrup.
  2. 2Remove the syrup from the heat and let it cool for about 5 minutes, then stir in the coconut extract and blue food coloring until evenly colored.
  3. 3Fill four glasses with nugget or finely crushed ice, packing it in loosely rather than jamming it down.
  4. 4Pour the chilled lemon-lime soda over the ice, filling each glass about three-quarters full.
  5. 5Spoon 2-3 tablespoons of the cooled coconut syrup into each glass and stir gently once with a straw to distribute the color and flavor without knocking all the fizz out.
  6. 6Serve immediately while the ice is still crunchy.

Tips & variations

  • Use Sprite or Sierra Mist for the closest match to the original; darker lemon-lime sodas can dull the blue color.
  • Start with 4 drops of food coloring and add more to taste, the color should look like pale turquoise water, not neon blue.
  • For a lower-sugar version, swap in a diet lemon-lime soda and cut the simple syrup in half.
  • Add a splash of coconut milk instead of extra syrup for a creamier, more tropical version.
  • The coconut syrup keeps well, so make a double batch and refrigerate it for quick drinks all week.

Storage & reheating

The coconut syrup can be made ahead and stored in a covered jar in the refrigerator for up to 2 weeks. Do not mix the full drink ahead of time, the soda will go flat and the ice will melt; assemble each glass fresh right before serving.

Tips from the Tulo kitchen

  • Letting the syrup cool completely before adding the extract keeps the coconut flavor from tasting cooked or muted.
  • A splash of coconut cream on top gives a layered, frothy look similar to the drive-in version's presentation.

FAQ

What gives Sonic Ocean Water its blue color?

Just blue food coloring stirred into a coconut-flavored syrup, there's no blue curaçao or other special ingredient involved.

What does Ocean Water taste like?

Mainly sweet coconut over lemon-lime soda, similar to a piña colada without the pineapple or alcohol.

Can I make this without coconut extract?

Yes, a coconut-flavored syrup like Torani coconut syrup can replace both the sugar syrup and extract, use about 3 tablespoons per glass in place of the homemade syrup.

Does Ocean Water have caffeine?

Not if made with a caffeine-free lemon-lime soda like Sprite or Sierra Mist, which is what the drive-in version uses.