Triple berry upside down cake |

Ingredients

• 1 cup fresh blackberries
• 1 cup fresh blueberries
• 1 cup fresh raspberries
• 3 tablespoons powdered sugar
• 2 ¼ cups all-purpose flour
• 1 ½ teaspoons baking powder
• 1 teaspoon salt
• ½ teaspoon baking soda
• 1 cup whole milk
• tablespoon fresh lime juice
• 2 teaspoons vanilla extract
• 12 tablespoons (1 ½ sticks) un-salted butter, softened
• 1 1/3 cups sugar
• 3 large eggs
• Powdered sugar (for sifting)
• Finely grated lime zest (for garnish)