Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large bowl, mix the spice cake mix, apple butter, vegetable oil, and eggs until smooth. Let the batter sit for 3-4 minutes.

Using a spoon or cookie scoop, drop heaping tablespoons of the batter onto the prepared baking sheet, spaced about 2 inches apart.

Bake for approximately 14 minutes or until a toothpick inserted in the center comes out clean.

Remove from oven and cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.

In a bowl, beat cream cheese and butter until fluffy, then mix in powdered sugar, milk, and vanilla until smooth for frosting.

Frost the flat side of one pie half, and sandwich with another half. Repeat until all pies are filled.

Store in a sealed container in the refrigerator or serve immediately.