I love this Brittle, but after making it several years, I changed: I use 2 more tablespoons butter instead of paraffin. I use only 1 teaspoon of baking soda. I cook it only until the nuts are as brown as I want them. I spread out and then lay 4 or 5 Hershey bars atop, then spread with spoon back as melt. Refrigerate to set up, break apart, store airtight (in fridge if hot weather). Very popular with friends and family!