Chocolate Chip Espresso Yogurt Cake

Bahan-bahan (10 porsi)

• 1 1/2 cups whole wheat pastry flour
• 2 teaspoons baking powder
• 1 teaspoon cinnamon
• 3/4 teaspoon kosher salt
• 1 -3 tablespoons instant espresso/coffee
• 1 cup plain Greek yogurt
• 1/2 cup maple syrup
• 1/2 cup extra virgin olive oil
• 3 eggs
• 1 tablespoon vanilla extract
• 1 cup chopped dark chocolate, plus more for topping
• 1 cup powdered sugar
• 2 teaspoons vanilla extract