Place the granulated sugar in a medium saucepan over medium heat.
Heat the sugar for the caramelization stage, the sugar will dissolve, become liquid and take on an amber color (be careful not to burn your caramel)
Still, on the heat, add the pieces of butter and mix with a wooden spoon until you obtain a homogeneous and liquid texture.
Then, still, on the heat, add the heavy cream in 2-3 times while mixing between each addition.
Cook the caramel for another 3-4 minutes over medium heat until thick and smooth.
Add the sea salt and mix again.
If necessary, blend the caramel in a hand blender to homogenize the caramel (small pieces of sugar often remain.)
Pour the salted caramel sauce into a glass jar with a lid and store in the refrigerator.
