Mango Upside Down Cake With Macadamia Nuts

Ingredients

• 11 t butter (160g), salted or unsalted, divided
• 3⁄4 c packed (170g) light brown sugar
• 2 c mango, peeled and cut into 3/4-inch cubes
• 3⁄4 c (150g) sugar
• 1 t vanilla extract
• 2 large eggs, room temperature
• 1 1⁄2 c (210g) flour
• 1 1⁄2 t baking powder, preferably aluminum-free
• 1⁄4 t salt
• 1⁄2 c (125ml) whole milk, at room temperature
• 3⁄4 c (200g) toasted macadamia nuts, roughly chopped