Pineapple Upside-Down Cake

4 tbsp unsalted butter

2/3 cup light brown sugar

4 pineapple slices (fresh or canned) ¼ inch thick

2 hamburger buns, spilt

vanilla ice cream

Heat oven to 350 degrees.  In a large oven proof skillet, over medium heat, melt the butter.  Add the sugar and cook, stirring constantly for 1 minute for caramel sauce.  Remove from heat.  Arrange the pineapple slices in a single layer in the skillet.  Top each slice with a bun half, cut side down.  Transfer to oven and bake for 30 minutes.  Let cool for 5 minutes.  With a spatula, invert each cake onto an individual plate and spoon any remaining caramel sauce over the top.  Serve with ice cream.