Toast pecans at 300 on a cookie sheet 5-8 minutes until fragrant. Let cool.
Microwave caramels, condensed milk and butter until perfectly smooth. Let cool a bit.
Microwave chocolates gently and let cool a bit.
Arrange pecans on wax paper in a cluster.
Spoon on some caramel.
Spoon on some chocolate.
Add sea salt, if desired.
Pop in fridge just a few minutes to set and remove from fridge.