Measure the homemade peanut butter, raw honey, and homemade vanilla into a small glass or stainless bowl. Set out the tablespoon measure, shallow dish, and scraper.
Melt the cocoa butter in a small stainless-steel saucepan over low heat. Turn off the heat when only a few pale pieces remain. Measure exactly 3 tablespoons of the clear melted cocoa butter.
Stir the melted cocoa butter into the peanut-butter bowl until the mixture is uniformly pale tan, smooth, and glossy with no oil ring or honey streak. Spread it in one thin even layer in the prepared dish.
Freeze at least 25 minutes, until rigid through the center. Lift out the sheet and chop into small irregular chips and shards. Keep cold.