Turn the NInja Foodi Possible Cooker on high sear/saute and add the sugar. Spread it around so it is in a single layer. During the preheat time, stir the sugar a couple of times. I recommend using a wooden spoon to stir, but you can also use a high heat silicone spatula. Make sure whatever utensil you use can withstand temperatures over 340℉/170℃. It will take about 4-5 minutes for the Possible Cooker to preheat, and when it says "Add Food," you don't have to do anything. It will automatically go directly to Sear/Sauté.
1½ cups granulated white sugar
Stir constantly so the sugar is moving around in the pan, this will prevent it from burning. As the sugar heats, it will start to clump and form sugar rocks. As the sugar rocks form, they will start out light tan and darken in color. Once all the sugar has clumped into rocks, you will start to see it melting and deepening in color. This is the caramelization of the sugar occurring, and it is very important that you stir constantly during this process. it takes about 10 minutes or so for all the sugar rocks to melt.
As soon as all the sugar melts, turn the Possible Cooker off. You do not need to remove the pot. Add the butter and stir to incorporate. It will bubble up some. Add a pinch of salt and the vanilla extract and stir.
¼ cup butter, ¼ teaspoon fine grind sea salt or kosher salt, ½ Tablespoon vanilla extract
Slowly pour in the heavy cream while stirring constantly. Once all the cream has been incorporated your caramel sauce is done.
¾ cup heavy cream
Carefully pour it into a glass jar or another heat-safe container and let it cool for 30 minutes at room temperature. Cover and store in the refrigerator until use. It is normal for the caramel to thicken as it cools, and while it remains scoop-able even refrigerated, leaving it to sit at room temperature for 30 minutes before using will soften it. You can also microwave it in 10-second intervals, stirring between intervals until it has warmed through.
The stove top directions are the same as when using the Ninja Foodi Possible Cooker. Use a large skillet that is about 10", and your heat should be on medium-high for most cooktops.
Other Appliances:
You can make this recipe in any appliance that has the sear/sauté function and follow the same directions. Most Ninja appliances will use high sear/sauté, but if you are using a stainless steel pot, you may want to reduce that to medium.
Storage:
Homemade Caramel Sauce should be stored in the refrigerator and will last at least 2 weeks when stored in an airtight container. My preference is to use canning jars for storage of the caramel. You can also freeze the caramel if preferred.