In a heatproof bowl or large measuring cup, combine 2 cups of sugar with 10 ounces of hot water. Stir with a whisk until the sugar is fully dissolved and the mixture looks clear.

Sprinkle in ½ teaspoon of citric acid and stir until blended completely. This gives the syrup its tangy balance.

Add 1 teaspoon raspberry extract, ½ teaspoon lemon extract, and ½ teaspoon orange extract. Stir well after each one.

Stir in ½ teaspoon blue food dye until the syrup is evenly colored with no streaks.

Place a funnel in a clean glass jar or bottle, pour the syrup inside, and seal with a tight lid. Let cool before using.