Add sugar to the pot and allow sugar to melt over medium high heat, continually stirring ensuring not to burn

Once sugar is completely melted (no clumps), add butter a few cubes at a time and whisk to incorporate (be careful as the caramel boils up and possibly splatters)

Slowly stream in heavy cream and whisk (be careful as the caramel boils up and possibly splatters)

Let mixture boil for 1 min, then turn off heat and stir in salt and vanilla

Pour into a heat proof container and allow to cool slightly

Bring apple juice, lemon zest, and vanilla extract to a simmer

Add apples, lower heat, and slightly simmer until tender

Remove apples from liquid and drizzle with warm caramel

Enjoy!