How to Make It
Melt butter in a large heavy-bottomed saucepan over medium-high. Add apples, brown sugar, water, lemon juice, cinnamon, allspice, cloves, and salt and stir to combine. Bring to a simmer, reduce heat to medium low, and cook, partially covered, until apples are very soft, 10 to 15 minutes.
Uncover and cook, stirring and mashing with a potato masher, until apples are saucy. Continue to cook, stirring and mashing often, until mixture thickens and turns a rich brown, 10 to 12 minutes.
Let cool slightly and transfer to resealable containers. Apple butter will keep in the refrigerator for up to 3 weeks.