If you're making homemade salted caramel sauce, heat sugar over medium heat in a saucepan, stirring constantly until it turns amber-colored. Slowly drizzle in the heavy cream and butter while stirring. Careful as it may splatter. Allow the mixture to boil for 1 minute. Remove from heat and stir in salt then transfer to a jar.
Preheat oven to 350ºF. Line a baking sheet with parchment paper. Set aside.
In a bowl or stand mixer, cream the butter and sugars together until smooth. Add egg, salted caramel sauce, and vanilla. Mix until well combined.
Add flour, baking soda, and salt. Mix until just combined. Careful NOT to over mix or you may end up with flat cookies. Fold in white chocolate chips and salted caramel chips.
Using a medium cookie scoop, form cookie doughs into balls (1 1/2 tablespoons size). Place the cookie dough balls on a baking sheet and freeze the dough balls for 20 minutes.
Bake for about 10-11 minutes. Remove from oven, sprinkle with flaky sea salt. Enjoy!