To prepare fruit. Select large, firm, tart strawberries. Wash and drain berries; remove caps.
To make preserve. Combine prepared fruit and sugar in alternate layers and let stand for 8 to 10 hours or overnight in the refrigerator or other cool place. Heat the fruit mixture to a boiling, stirring gently. Boil rapidly, stirring as needed to prevent sticking. Cook to 9 degrees F. above the boiling point of water, or until the syrup is somewhat thick (about 15 or 20 minutes). Remove from heat; skim.
Fill hot preserves immediately into hot, sterile jars, leaving ¼ inch headspace. Wipe rims of jars with a dampened clean paper towel; adjust two-piece metal canning lids. Process in a Boiling Water Canner.