Pineapple Upside Down Cake

My friend asked for a pineapple upside down cake... I feel like this is one of those things that you were supposed to learn how to make when you were little but I never did. I've actually made some other fruit upside down cakes but not a pineapple. I looked around and basically what I could deduce is a pineapple upside down cake is melted butter and sugar, pineapple rings and then white cake. I don't actually have a standard white cake recipe. I looked around and all the recipes I could find called for milk or buttermilk, neither of which I had. I used the Ultra Orange Cake from the Joy of Cooking (1997 Edition... different than the 75th anniversary edition) and a mash-up of the pineapple part... Oh, apparently PUDC (too long to retype every time) have maraschino cherries... but I hate maraschino cherries, so I used raspberries instead.

Let me just say that I was a little worried about the cake part... it's vegan and from the Joy which are two things I don't usually associate together. But oh man. So you flip the cake over, right? But I had a little extra batter and made some cupcakes with it and the top part made this little sugar crust to break through to get to the cake. Mmm! And the pineapple part was quite nice too, but I think this cake might have been too good for pineapples. It doesn't even need a glaze, I don't think. Maybe a dusting of powdered sugar to make it pretty.

Ingredients
4 Tbsp melted butter
1/2 cup brown sugar
7 pineapple rings (from a can, or fresh if you're fancy)
raspberries (or whatever) to put between the pineapples
1 1/2 cups all purpose flour
1 cup sugar
1 tsp baking soda
1/2 tsp salt
zest of 1 orange
1 cup orange or pinapple juice (I juiced the zested orange and then just used the juice from the pineapple can... if you do this MAKE SURE you are using pineapples in JUICE not SYRUP!)
1/3 cup vegetable oil
1 Tbsp white vinegar
2 tsp vanilla

Directions
1. Preheat your oven to 350.
2. Pour the melted butter into an 8 or 9 inch round pan. Evenly sprinkle the brown sugar over the butter.
3. Place one pineapple ring in the middle and the remaining 6 around the edges. Put a raspberry in the middle of each ring and in any gaps between pineapples.
4. In a medium bowl, mix together the flour, sugar, salt, soda, and zest.
5. In a small bowl or liquid measuring cup, measure out the juice, oil, vinegar and vanilla.
6. Pour the liquids into the dry ingredients and mix together quickly.
7. Pour the batter into the pan. If you use an 8 inch pan, you'll probably have too much batter. But there are no eggs in it, so you don't have to worry about salmonella if you just want to eat it... but you could bake it into cupcakes too.
8. Bake for 35-40 minutes (my oven is so wonky so you might want to start checking at 30 minutes) or until a toothpick inserted in the center comes out clean.
9. Allow the cake to cool for about 5 minutes before flipping it upside down onto a cake plate.