4 oranges, with thick skin
5 cups granulated sugar
Juice of one lemon
Wash the oranges well, then by using the fine side of the grater, carefully grate off the skin of orange and discard it (picture). Place the oranges in a large pot. Cover with water. Cook on medium-low heat until they are softened for about 45 minutes.
Drain the oranges. Cut off the top and bottom of the oranges. First slice them up. Then cut into chunks. Place the sugar in a pot and melt it with a little bit of water. Throw the oranges over the melted sugar. Cook for another 45 minutes on medium heat. Afterwords, squeeze the lemon juice on top, stir. Let it cool down a little bit. Pour them in clean jars and cover the lid.