Preheat oven to 350°F. Line a baking sheet with parchment paper.
Place oats and baking powder in a food processor. Pulse until oats form a coarse flour.
Add chickpeas, pumpkin, sunbutter, lemon juice, cumin, onion powder, cinnamon, andsalt. Process to combine, scraping down the sides with a spatula. If the mixture is toocrumbly, add water, 1 teaspoon at a time, until it holds together when squeezed.
Form the batter into 18 balls and place on the prepared baking sheet. The batter should make eighteen balls.
Bake for 20–25 minutes until lightly browned.
Remove from oven and cool on a wire rack before serving, or refrigerate for up to 5days.