Line an 8x8 pan with parchment paper and set aside.

Peel and core apples. Cut them into large chunks.

Place apples, dates, almonds, and oats in a food processor or blender.

Pulse ingredients until they come together in a thick paste. Spoon mixture into prepared pan and press in an even layer. I like to line the pan so there's extra parchment on either side so it can be folded over on top of the mixture. That way I can press down on the parchment with my hands or the bottom of a glass to create a smooth bar.

Cover and place in the fridge for about 2 hours to set. Remove from fridge, cut into 10 bars, and place in an air-tight container in the fridge.