Apple butter is basically just butter infused with an apple flavor, and tastes great on everything from bagels and toast to melted over fish or sauteed with chicken. When creating apple butter at home, it is important to have proper materials and the best quality applesauce you can find. The method of using a slow cooker helps prevent any of the butter from burning and allows you to work slowly enough to complete all the steps correctly.
Heat up the slow cooker on medium heat.
Add the applesauce, sugar, cinnamon, allspice and ground cloves into the slow cooker. You can tailor the amounts for your own tastes if you like one of the spices more than others. Also, consider the sugar content of your applesauce. If it is already really sweet, you can decrease the amount of sugar you add to the crock pot depending on your tastes.
Stir the sugar and spices slowly into the applesauce so they are evenly incorporated. Cover the cooker with one edge propped open a little to let steam escape to encourage thickening. Set the temperature on high.
Check on the apple butter after precisely 60 minutes and stir it thoroughly. Replace the cover (leaving it slightly up again) and turn heat to low. If you need to speed up the process, keep the temperature on high but you must pay close attention so it doesn't burn.
Cook the apple butter for about seven to eight hours. To see if the butter is done, scoop up a spoonful of the butter on a small plate. If it stays in a mound with no puddling liquid, it is done. If liquid occurs, it needs to be cooked longer.
Pour the apple butter in a heat-safe airtight container once it is done cooking. Store it in the refrigerator for up to a couple of weeks, or in the freezer for a couple of months. Keep in mind you can also can apple butter to store it for over a year at room temperature.