I am the laziest of humans when it comes to sifting ingredients but sifting the baking soda is really important. Be sure to do that before you start this project.
This recipe goes very quickly so gather all of your ingredients and supplies. Line a baking sheet with parchment and have it nearby. A silicon spatula also comes in handy with this recipe.
In a large pot (I like to use a 5-quart Dutch oven), pour in the sugar, honey and salt. Heat the sugar mixture to 295 degrees F, about 3 minutes, stirring it with a silicon spatula to ensure even caramelization. During this time it'll turn an autumn-like brown.
Turn off the heat and then immediately add mix the vanilla extract and baking soda. The mixture will foam up quite a bit, continue stirring until the baking soda completely dissolves. Quickly pour the honeycomb mixture onto a sheet of parchment. Allow it to cool completely before touching it, about 2 minutes.
I waited about 5 additional minutes before attempting to break it apart. I really wanted to make sure it was set. Break the honeycomb apart and transfer to an airtight container. Depending on where you live, the moisture can set in and make it a lot less crisp.