Prep the apple: Core and finely chop the apple into very small pieces. Pat dry with a paper towel to remove extra moisture.
This helps the bites hold their shape.
Mix the wet ingredients: In a large bowl, stir together almond butter, honey, and vanilla until smooth and glossy.
Add the dry ingredients: Add oats, ground flaxseed, shredded coconut, cinnamon, and salt. Stir until everything is evenly coated and starting to clump.
Fold in the apple and mix-ins: Gently fold in the chopped apple and, if using, mini chocolate chips or raisins. If the mixture feels too dry to hold together, add 1 tablespoon of water at a time.
Chill briefly: Place the bowl in the fridge for 15–20 minutes.
Chilling firms up the mixture, making it easier to roll.
Roll into bites: Scoop about 1 tablespoon of mixture per bite and roll between your palms to form balls. Aim for walnut-sized portions.
Set and store: Arrange the bites on a plate or baking sheet. Chill for another 15 minutes to set, then transfer to an airtight container.