Preheat oven to 350°F/177°C. Line a 8.5″ by 4″ loaf pan with parchment paper.
In a large bowl, add the mashed banana, eggs, SunButter and oil. Whisk together. Add in the yogurt, sugar, baking soda, baking powder, vanilla extract, and cinnamon.
Next, gently fold in the flour until just combined. Don’t overmix.
Pour the batter into the prepared pan and tap the pan against the counter few times to release any air bubbles.
Place into the oven and bake at 350°F/177°C for 60-65 minutes, until a toothpick inserted comes out clean, or with slight crumbs clinging to it.
Notes
Can be stored in an airtight container for up to 3 days at room temperature. Or sliced, individually wrapped and frozen for up to 2 months. Microwave for about 1 minute to heat through before serving from frozen.