Pineapple Upside Down Cake

Ingredients

• ½ cup milk
• 2 large eggs at room temperature
• 1 tablespoon white vinegar
• 1 ½ cup all-purpose flour
• 1 1 /2 teaspoon baking powder
• 1 teaspoon vanilla extract
• 3 tablespoon oil
• ¼ teaspoon of salt
• 3 tablespoons melted unsalted butter
• 5 tablespoons unsalted butter at room temperature
• ¾ cup packed (dark brown sugar)
• 8 slices of pineapples (core removed)
• 1 cup fine sugar