Preparation Pit the cherries, reserving 36 pits. Place the pits in a towel and hit sharply with a hammer. Remove the inner kernel from each pit. Combine these kernels, 1/4 of the cherries, the corn syrup, and 1 cup sugar in a large pot and cook over medium heat, stirring constantly, until sugar dissolves. Add remaining cherries and sugar and bring to a boil, stirring frequently so that the sugar does not burn. Cook at a rolling boil for 12 minutes, remove from the heat and skim carefully. Pour juice and cherries in a single layer into shallow pans, cover each with a pane of glass and insert a small paper wedge under the glass on each pan to allow air to circulate. Stand pans in the sun for 3 days, or until liquid thickens. Stir twice daily. Pour into hot, sterilized jelly glasses and cover with a thin layer of melted paraffin. When the paraffin has hardened, cover the glasses and store. (If you do not have 3 consecutive days of hot sun, the juices will take longer to thicken but the end result will be the same.)
Preparation Pit the cherries, reserving 36 pits. Place the pits in a towel and hit sharply with a hammer. Remove the inner kernel from each pit. Combine these kernels, 1/4 of the cherries, the corn syrup, and 1 cup sugar in a large pot and cook over medium heat, stirring constantly, until sugar dissolves. Add remaining cherries and sugar and bring to a boil, stirring frequently so that the sugar does not burn. Cook at a rolling boil for 12 minutes, remove from the heat and skim carefully. Pour juice and cherries in a single layer into shallow pans, cover each with a pane of glass and insert a small paper wedge under the glass on each pan to allow air to circulate. Stand pans in the sun for 3 days, or until liquid thickens. Stir twice daily. Pour into hot, sterilized jelly glasses and cover with a thin layer of melted paraffin. When the paraffin has hardened, cover the glasses and store. (If you do not have 3 consecutive days of hot sun, the juices will take longer to thicken but the end result will be the same.)