Making Sweet Candy Grape Tanghulu is straightforward if you follow these steps:

1. Prepare the Grapes: Wash the grapes thoroughly and dry them completely with a kitchen towel. This step is crucial for the sugar to adhere properly.
2. Insert Sticks: Carefully insert a popsicle stick or skewer into each grape, leaving enough of the stick exposed for easy handling.
3. Make the Sugar Syrup: In a medium saucepan, combine the granulated sugar, water, and lemon juice. Place over medium heat.
4. Dissolve Sugar: Stir the mixture until the sugar is completely dissolved. Allow it to boil without stirring until it reaches a temperature of 300°F (150°C) on a candy thermometer, or until it turns golden and thick.
5. Coat the Grapes: Remove the saucepan from heat. Quickly dip each grape into the hot sugar syrup, swirling to coat evenly. Let any excess syrup drip off.
6. Cool the Grapes: Place the coated grapes on a parchment-lined baking sheet. If desired, lightly spray the parchment with cooking spray to prevent sticking.
7. Let Them Set: Allow the Tanghulu to cool and harden for about 10-15 minutes.
8. Serve: Once the candy has hardened, your Sweet Candy Grape Tanghulu is ready to enjoy!

These steps will guide you in creating this incredible dessert effortlessly.