my homemade marshmallow fluff can be made ahead of time and stored in the fridge. Heat for a few seconds to make it gooey again. You can use coconut sugar since you don't need it to be bright white for this recipe. -I used artisana organics brand cacao cashew hazelnut spread here. There are several brands of healthier "Nutella" in markets today -I sliced into 10 bars, then halved again to make 20 servings -NOTE your caramel will not be gooey / pull apart worthy right out the fridge (will look like last photo right out the fridge). Let come to room temp or warm slightly first for gooey caramel