Corncob Jelly

Remove corn kernels from cobs and save for another recipe. In a large pot, drop corncobs in 7 cups of water and bring to a boil. Boil uncovered for 10 minutes. Throw away the cobs and strain the liquid. Reserve 3-1/2 cups of corncob water and place into a large pot. Stir in the pectin and bring to a strong boil. Add the sugar and bring back to a boil. Skim the foam off the top and add a few drops of yellow food coloring. Ladle the liquid into jelly jars, leaving about 1/2- to 1-inch headspace. Place the seal and rings on the jar and process in a water bath for 10-15 minutes. Remove and set aside. If jars do not seal, refrigerate and use.