Winter Citrus Upside-Down Cake Recipe | Full Circle

Ingredients

• 2 blood oranges
• 2 mandarins
• 1 tangelo
• 1 small graperfruit
• 2 meyer lemons
• 4 kumquats
• 1/4 cup sugar (for bottom of the pan)
• 1/4 cup butter, melted (for bottom of the pan)
• For the Cake Batter:
• 1/3 cup granulated sugar
• 1/3 cup brown sugar
• 1/2 cup butter, room temperature
• 2 eggs and 1 egg white, room temperature
• 3 tablespoons freshly squeezed citrus juice
• 1 tablespoon citrus zest
• 1 tablespoon pure vanilla extract
• 1 1/2 cups, plus 1 tablespoon flour
• 1/2 teaspoon cinnamon
• 1 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon salt
• 2/3 cup plain yogurt