Prepare vanilla bean ice cream base by combining 1 cup heavy cream, whole milk and sugar in a heavy medium saucepan. Cut vanilla bean in half lengthwise. Scrape out seeds, adding to the cream mixture and then place empty vanilla pods directly into the mixture.
Meanwhile, whisk together egg yolk and remaining one cup cream. Ladle a small amount, approximately 1/2 cup hot cream mixture to egg yolk, whisking constantly until blended. Then pour egg yolk mixture back into the sauce pot, continuing a vigorous whisk.
Continue whisking to prevent the egg yolk from setting up and cooking. Cook for 5 additional minutes, or until mixture has come to a low simmer. Remove from heat and run through a fine sieve to remove any large bits that would result in your ice cream being less than smooth. Place cream mixture into a large plastic container. Add vanilla bean pods to add additional flavor while the mixture cools. Remove before adding to the ice cream maker.
Combine cream mixture with salted caramel sauce. Cover tightly and refrigerate overnight.
Make ice cream according to the manufacturers directions and then freeze overnight to reach a harder consistency.
If you've tried this recipe, come back and let us know how you liked it!