In a large saucepan, combine 2 cups sugar with 1 cup water. Bring to a boil, then cook until the mixture reaches 230°F.
Add 2 cups of strawberries, bring to a boil, and cook for 10 minutes.
Add the remaining strawberries and the remaining sugar, and bring to a boil. Cook for another 10 minutes.
Remove from the heat skim the foam off the top. Transfer to jars, and store in the refrigerator.
If you're using homegrown berries or berries that you picked yourself, you can leave them whole or halve them. If you're using store-bought berries, which can be quite large, quarter them. You can reduce the sugar to 2 cups if you'd like. Make the sugar syrup as directed, but don't add the remaining sugar when you add the second portion of the berries.