01 - In a large mixing bowl, combine the oats, protein powder, chia seeds, cinnamon, nutmeg, and salt. Mix thoroughly to ensure even distribution of spices and seeds.
02 - Add the pumpkin puree, almond butter, maple syrup, and vanilla extract to the dry mixture. Stir vigorously until a thick, cohesive dough forms and all dry ingredients are fully incorporated.
03 - Fold in chocolate chips and chopped nuts if desired, distributing them evenly throughout the dough.
04 - Using your hands or a small cookie scoop, portion the mixture and roll into 12 evenly sized balls, applying gentle pressure to ensure they hold their shape.
05 - Arrange the balls on a parchment-lined baking tray and refrigerate for at least 30 minutes to firm up and develop optimal texture.
06 - Transfer to an airtight container and store in the refrigerator for up to one week, or freeze for up to three months.