In a heavy-bottomed pan or kadai, take 1 cup sugar and add 1/2 cup water (just enough to cover the sugar, maintaining a 2:1 ratio). Keep the flame on low (sim) and allow the sugar to dissolve completely, wiping any sugar crystals from the sides of the pan.
Once the sugar dissolves and starts boiling, add 1 tbsp of milk on low flame. Within a few seconds, scum/dirt will float to the top. Remove it with a perforated ladle and strain the syrup. (This step is optional if using clean, high-grade sugar).
Thin & Sticky Syrup (Pisukku Padham): Return syrup to low flame. As it boils and becomes shiny, touch a drop between your thumb and forefinger. When you slide them, it feels sticky like oil without forming a string. This consistency is used for Gulab Jamun.
Half-String Consistency: Within a minute of boiling further on low flame, test between thumb and forefinger—it forms a tiny string that snaps immediately. This syrup is used for Jangiri, Jalebi, Badusha, and Kajas.
One-String Consistency (Otrani Padham): The most important stage! A continuous thin string forms 1 to 2 inches long between fingers without breaking. Or drop into water—it doesn't dissolve immediately. Used for Kaju Katli, Badam Burfi, Mysore Pak and general burfis.
Two-String & Three-String Consistency: Boiled further, two distinct strings form between fingers. This syrup crystallizes quickly, creating a sugar-crusted finish needed for Cashew Burfi, Boondi Ladoo, and Mohanthal.
Soft Ball Consistency (Thakkali Padham): Pour a small spoonful of syrup into a small bowl of water. Gather it with your fingertips—it rolls into a soft, pliable ball. This stage is essential for traditional sweets like Adhirasam.
Hard Ball Consistency: Boiling for a few more seconds, when dropped into water and rolled, it forms a firm, hard ball that makes a distinct 'tung' sound when dropped onto a plate. Used for Kadalai Mittai (peanut chikki) and Pori Urundai.
Stages of Jaggery Syrup: In a pan, melt 1 cup grated jaggery with 1/4 cup water. Strain impurities, then boil until frothy and honey-thick. Drop in water to test for Soft Ball (Adhirasam) or Hard Ball with 'tung' sound (Pori Urundai and Peanut Chikki).