INGREDIENTS
3
Bananas, ripe
1
Egg plus 1 egg yolk, large
2 cups
All-purpose flour
1 tsp
Baking soda
1 cup
Granulated sugar
1/2 tsp
Kosher salt
1/2 cup
Semi-sweet chocolate chips
1 tsp
Vanilla extract, pure
1/2 cup
Butter, Unsalted
1/4 cup
Sour cream