
Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
In a bowl, whisk together flour, baking soda, cinnamon, and salt.
In another bowl, cream together softened butter, granulated sugar, brown sugar, and apple butter until smooth.
Add the egg and mix until fully combined.
Gradually incorporate the dry mixture into the wet ingredients until just blended.
Scoop tablespoon-sized portions onto prepared baking sheets, spacing them apart. Sprinkle with cinnamon sugar if desired.
Bake for 10-12 minutes until golden around the edges but still soft in the center. Cool on wire racks.