Start by combining 1 cup granulated sugar and 1/4 cup cold water in a medium saucepan. Use a whisk to mix them well until the sugar is fully dissolved. This step ensures that the sugar melts evenly when heated.
Place the saucepan over medium-high heat and watch as the mixture starts to bubble. Don’t stir it at this point; just let the magic happen. As it heats, you’ll notice the color gradually changing to a golden amber. This will take about 15 to 20 minutes. Keep an eye on it to avoid burning.
While the sugar is cooking, place 1/2 cup heavy whipping cream in the microwave for about 30 seconds. You want it warm but not boiling, so it mixes well with the sugar.
Once the sugar turns that beautiful amber color, reduce the heat to medium-low. Carefully pour the warm heavy whipping cream into the saucepan. Be cautious, as it may bubble vigorously. Use a whisk to continuously stir the mixture as you pour, ensuring a smooth blend.
Allow the mixture to simmer for a few minutes, keeping it on medium-low heat. Stir continuously until the sauce becomes smooth and well combined. This is where the cream integrates beautifully with the caramelized sugar.
Add 2 tablespoons unsalted butter and 1 teaspoon kosher salt to the saucepan, turning off the heat. Continue to stir until the butter is fully melted and incorporated into the sauce, giving it a rich and glossy finish.
Your Salted Caramel Sauce is ready to be served! Let it cool slightly before using. It can be drizzled over ice cream, cheesecake, or even enjoyed straight from the jar!