01 -
Preheat oven to 350°F (175°C). Grease or line an 8×8-inch baking pan with parchment paper.
02 -
In a medium bowl, whisk together the gluten-free flour, baking powder, baking soda, salt, cinnamon, and nutmeg.
03 -
In another large bowl, mix the mashed sweet potato, coconut sugar, eggs, melted coconut oil, yogurt, and vanilla extract until smooth.
04 -
Gradually add the dry ingredients into the wet ingredients and stir until just combined.
05 -
In a small bowl, combine flour, coconut sugar, cinnamon, and melted butter. Stir until crumbly.
06 -
Pour the batter into the prepared baking pan and spread evenly. Sprinkle the streusel topping evenly over the batter.
07 -
Bake for 35–40 minutes, or until a toothpick inserted into the center comes out clean.
08 -
Let cool completely before slicing and serving.