To achieve the perfect 'one-string consistency' for sugar syrup, boil the syrup until a single, unbroken string forms when a small amount is cooled slightly and stretched between your thumb and forefinger. This consistency is crucial for sweets like Jalebi, Gulab Jamun, and certain types of Indian fudge (Barfi).
The 'one-string consistency' is a specific stage in sugar syrup making, indicating a certain sugar concentration. Here's how to achieve it:
Combine Sugar and Water: Start by combining sugar and water in a saucepan. The ratio can vary depending on the recipe, but a common starting point is 1:1.
Dissolve the Sugar: Heat the mixture over medium heat, stirring constantly until the sugar is completely dissolved. Ensure no sugar crystals remain at the bottom of the pan.
Boil the Syrup: Once the sugar is dissolved, stop stirring and allow the syrup to boil. Use a candy thermometer to monitor the temperature. The one-string consistency is typically reached around 223-235°F (106-113°C).
Test the Consistency: To test, take a small spoonful of the syrup and let it cool slightly (a few seconds). Then, dip your forefinger into the cooled syrup and touch it to your thumb. Slowly pull your fingers apart. If a single, unbroken string forms between your fingers, you've reached the one-string consistency.
Adjust as Needed: If the string breaks easily, continue boiling the syrup for a little longer and test again. If the syrup forms a hard ball when cooled, you've gone too far. In that case, you may need to add a little water and start again.
This consistency is vital for sweets like Jalebi, where the syrup needs to coat the crispy spirals without making them soggy; Gulab Jamun, where the syrup needs to penetrate the spongy balls; and Barfi, where the syrup acts as a binder.
Adding a tiny pinch of cream of tartar or a squeeze of lemon juice to the syrup while boiling can help prevent sugar crystallization, ensuring a smoother and clearer syrup.