Prep pan. Preheat your oven to 325°F/165°C and grease a 8×4-inch loaf pan. Alternatively, you can line it with a strip of parchment paper for easy removal. Mix dry ingredients. In a large bowl, whisk together flour, baking soda, pumpkin pie spice, and a pinch of salt.
Mix wet ingredients. In a separate bowl, combine the pumpkin puree, maple syrup, olive oil, eggs, and vanilla.
Combine. Pour the wet mixture into the dry ingredients then fold them together using a silicone spatula until just combined. Make sure not to over mix the batter!
Bake. Pour the pumpkin batter into your prepared pan and bake for 55-60 minutes in the center of your oven. It's ready when a toothpick or the tip of a knife inserted into the center of the loaf comes out clean and the top of the loaf is golden brown.
Cool. Allow the loaf to cool in the pan for about 10-15 minutes before transferring it to a wire rack. Let cool to room temperature.
Add topping. Use an offset spatula to spread the yogurt on top of the cake (if using). Alternatively you can use a citrus glaze, see recipe notes below. Store in the fridge until ready to enjoy!