Pineapple Upside Down Cupcakes

INGREDIENTS

cooking spray

1/2 cup

butter (, melted)

1 1/2 cups

brown sugar

maraschino cherries

1 20 ounce can

crushed pineapple (reserve juice)

1 18.25 ounce package

yellow cake mix (and oil and eggs called for on the package)

1 1/3 cups

pineapple juice ((you just need as much pineapple juice as water called for on the cake mix package - see note))

confectioners' sugar for dusting