Preheat your oven to 350°F/180°C. Line an 8x8-inch baking tin with parchment paper and grease any unlined sides.
Place ½ cup rolled oats into your food processor and let it run until they are ground into a fine flour.
Add 1-14oz can of well-drained chickpeas (or 1 ½ cups cooked chickpeas), ½ cup tahini paste, ⅓ cup maple syrup, 1 Tablespoon coconut oil, 1 teaspoon vanilla extract, 1 teaspoon cinnamon, ½ teaspoon baking powder, ½ teaspoon baking soda, and ¼ teaspoon salt.
Run the food processor, stopping to scrape the bottom and sides a few times, until the mixture is completely smooth.
Add ¾ of the chocolate chunks, reserving the rest to sprinkle on the top. If the mixture is quite warm from the food processor, you might want to let it cool a bit before adding the chocolate.
Spread the mixture into the prepared baking tin. It is quite thick, so I find that wet hands are best for smoothing the top out.
Sprinkle the top with the remaining chocolate chunks.
Place into the oven and bake for 20 minutes. The edges should be golden and the top shiny, but the middle still quite soft.
Allow the blondies to cool completely before slicing.