3 very ripe bananas
2 large eggs
1 ½ cups unbleached all-purpose flour
1 cup granulated sugar
1 tsp. baking soda
2 tsp. ground cinnamon
1 tsp. pure vanilla extract
¾ cup semisweet chocolate chips

For topping:
2 Tbsp. granulated sugar
1/8 tsp. ground cinnamon
1/8 tsp. cardamom
1/8 tsp. all spice
1/8 tsp. nutmeg

Preheat the oven to 375 degrees Fahrenheit. Butter or spray an 8-inch square pan.

In a medium mixing bowl, mash the bananas well with a fork or potato masher. Add the eggs, and stir well to combine. Add the flour, sugar, baking soda, cinnamon, and vanilla, and stir to mix. Add the chocolate chips, and stir briefly. Pour the batter into the prepared pan, and set aside.

In a small bowl, stir together the topping ingredients. Sprinkle the mixture evenly over the batter in the pan. Optionally you can add an additional ¼ cup chocolate chips to the top.

Bake for 35-40 minutes, or until a toothpick inserted into the center comes out clean.