INGREDIENTS
3
Bananas, ripe
1
Egg plus 1 egg yolk, large
1 tsp
Baking soda
3/4 cup
Brown sugar
1/4 tsp
Cinnamon, ground
2 1/2 cups
Flour
3/4 cup
Granulated sugar
3/4 tsp
Kosher salt
1 tsp
Vanilla extract, pure
1
Cooking spray
1/2 tsp
Espresso, powder
1/2 cup
Butter, unsalted
4 tbsp
Butter
1/4 cup
Sour cream