cranberry upside-down cake

Ingredients

• 1 cup unsalted butter (room temp), and
• 1 cup packed light brown sugar
• 1/4 teaspoon ground cinnamon
• 2 cups fresh or thawed frozen cranberries
• 1 cup sugar
• 1 large egg yolk (room temp)
• 2 large eggs (room temp)
• 2/3 cup sour-cream (room temp)
• 1 teaspoon vanilla extract
• 1/2 teaspoon salt
• 1 3/4 cups cake flour
• 1 teaspoon baking powder
• 1/4 teaspoon baking soda