Plugrà - Pineapple Upside Down Cake

Ingredients

• 20-oz. can (567g) pineapple rings, drained, juice reserved
• 3 (9g) egg whites
• 1 lg. (5g) egg
• 2 tsp. (1g) vanilla extract or pineapple extract
• 8 oz. (227g) Plugrá® Premium Butter, unsalted, softened, divided
• ¾ cup (147g) brown sugar
• 10 (40g) maraschino cherries, without stems
• 3 cups (340g) cake flour
• 1½ cups (300g) sugar
• 2 tsp. (9.6g) baking powder
• ¼ tsp. (1g) salt