Preheat the oven to 375°F and grease your muffin pan with oil or butter.
In a bowl, mash the bananas with a fork until they are mushy. Add the oil, egg and buttermilk to the bowl and whisk together.
3 very ripe bananas, ½ cup canola oil, 1 egg, 3 tbsp buttermilk
Add in the flour, sugar, cinnamon, and the rest of the dry ingredients. With a spatula, mix until just combined.
1½ cups all purpose flour, ¾ cup granulated sugar, 1½ baking soda, 1 tsp cinnamon, ¼ tsp salt
Fold in the chocolate and almonds until just mixed.
⅓ cup dark chocolate chips, ⅓ cup almonds
Spoon the batter into each muffin tin until nearly full.
Bake the muffins for 20 minutes, or until they look golden and springy to the touch. A knife should come out clean when inserted.