Preheat oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
In a large mixing bowl, whisk together sweet potato puree, almond butter, maple syrup, egg, and vanilla extract until smooth.
Sift the oat flour, cinnamon, nutmeg, baking soda, and salt into the wet mixture.
Fold the dry ingredients into the wet batter using a spatula until just combined.
Stir in the chocolate chips.
Spread the batter evenly into the prepared baking pan.
Bake for 25 to 30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out clean.
Allow the blondies to cool completely in the pan before slicing into 12 bars.