While the oven heats up, peel, core and slice apples (aim for ⅓-½ inch thick). See notes below.
Add the sliced apples to a 9x12 baking tray along with the oil, lemon juice, pumpkin pie spice, sugar (if using), and a pinch of salt. Mix with your hands or a spoon until evenly coated.
Bake uncovered for 15 minutes, stir the apples and bake for another 15 minutes.
Remove from the oven and add ¼-½ cup dairy-free caramel sauce to the apples, evenly coating them. Stick back in the oven for another 2-3 minutes to warm up and meld the flavors together.
Serve warm.
Notes
If don't have pumpkin pie spice, just use a mixture of cinnamon, ginger, nutmeg, and allspice with the largest quantity being of cinnamon.
If your apples end up on the thinner side once they've been cut, reduce the baking time to avoid mushy apples.
The apples will last a sealed container in the fridge for up to one week.