For the Salted Caramel:

1. In a medium saucepan, add sugar over medium heat. Whisk frequently once sugar begins to melt. The sugar will begin to form lumps but keep whisking until the sugar melts down completely and all the lumps disappear.
2. Once the sugar has completely melted, add the butter, and whisk until completely melted.
3. Remove from heat and add the heavy cream, whisking until combined. Add salt and whisk until dissolved.
4. Let sit and cool for at least 15 minutes before transferring to a jar.

For the Apple Dip:

1. In a small mixing bowl, stir yogurt, peanut butter, and caramel until combined, smooth and creamy. Drizzle extra salted caramel on top before serving.
2. Serve with sliced apples.