Bon Appetit’s Banana Coffee Cake with Chocolate Chip Streusel - Upper Arlington Public Library

Ingredients

• 1 1/4 cup semisweet chocolate chips
• 2/3 cup golden brown sugar, firmly packed
• 1/2 cup walnuts, chopped
• 1 tablespoon cinnamon
• 1 1/2 cup flour
• 3/4 teaspoon baking soda
• 3/4 teaspoon baking powder
• 1/4 teaspoon salt
• 3/4 cup sugar
• 1/2 teaspoon unsalted butter (room temperature)
• 1 egg (large )
• 1 1/3 cup bananas, mashed very ripe (about 3 large)
• 3 tablespoon buttermilk