Name: Apple-Blackberry Upside Down Cake
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Yield: one 9-inch cake
Ingredients: apple blackberry topping:3 Tbsp unsalted butter, at room-temperature3 Tbsp (packed) light brown sugar1 medium apple,¹ peeled and thinly sliced1 cup blackberries,² fresh or frozencake:4 Tbsp unsalted butter, melted and cooled1-1/2 cups all-purpose flour, spooned and leveled2 tsp baking powder1/4 tsp baking soda1/2 tsp kosher salt1/2 tsp ground cinnamon1/4 cup granulated sugar2 Tbsp (packed) light brown sugar1/4 cup unsweetened applesauce3/4 cup whole milk, at room-temperature1 Tbsp fresh lemon juice1 tsp pure vanilla extractoptional: 1 tsp lemon zest