Buffered toast would be sitting in the oven on a cookie sheet, so it was warm and ready for dipping when the Bartholomew family had hot cocoa and toast for dinner.
2 T. cocoa
3 T. sugar, or to taste
Mix dry ingredients in a small saucepan. Add enough water to just cover mix. Do not stir. Bring to full boil, then add milk to desired richness. It is key not to stir at all.