I think I'd make it easy on yourself and make the applesauce in the crockpot and then put it in the freezer. Here's a recipe I developed some time ago:
KATIE’S PINK CROCKPOT APPLESAUCE
8 medium Granny Smith apples,
peeled and cut into fourths
½ cup granulated sugar
1/3 cup tiny red cinnamon candies
¾ cup apple cider
2 Tbsp. unsalted butter
½ tsp. ground cinnamon
¼ tsp. salt
In a 3½-quart or larger crockpot, mix all ingredients.
Cover and cook on HIGH for about 1½ to 2 hours or until the apples are just beginning to get tender. Remove lid and stir with a wooden spoon to break up larger chunks. Serve warm or chilled. Note:
This applesauce can be frozen in airtight containers for up to three months.
Depending on the type of apples you have, you might have to adjust the sugar. Granny Smith's are a bit tart.