Here is the applesauce from the Ball Complete Book of Home Preserving
12 pounds apples, peeled, cored, quartered, treated to prevent browning and drained
Water
3 cups sugar (optional)
4 tbsp lemon juice
1. Prepare canner and lids
2. In a large stainless steel saucepan, combine apples with just enough water to prevent sticking. Bring to a boil over medium-high heat. Reduce heat and boil gently, stirring occasionally, for 5 to 20 minutes, until apples are tender (time will depend upon the variety of apple and their maturity). Remove from heat and let cool slightly, about 5 minutes.
3. Working in batches, transfer apples to a food mill or a food processor fitted with a metal blade and puree until smooth.
4. Return apple puree to saucepan. Add sugar, if using, and lemon juice; bring to a boil over medium-high heat, stirring frequently to prevent sticking. Maintain a gentle boil over low heat while filling jars.
5. Ladle hot applesauce into hot jars, leaving 1/2 inch of headspace. Remove air bubbles and adjust headspace, if necessary, by adding hot applesauce. Wipe rim. Center lid on jar. Screw band down until resistace is met, then increase to fingertip=tight.
6. Place jars in canner, ensuring they are completely covered with water. Bring to a boil and process both pint and quart jars for 20 minutes adjusting for altitude if necessary.
This makes about 8 pint jars or 4 quart jars. If you omit the sugar it makes slightly less.
You must add the lemon juice for safe canning to assure the acid levels of the finished product.
Variations:
Spiced applesauce: In step 4, add 4 tsp ground spices, such as cinnamon, nutmeg or allspice, to the sauce with the sugar and lemon juice
Chunky applesauce: In Step 4, coursely crush half of the coocked apples and puree the reminder. Combine before adding the sugar.