Preheat oven to 350°F. Mix the pineapple juice, 2 tbsp canola oil and ⅓ cup Sucanat together. Spread on the bottom of an 8" x 8" x 2" pan that has been sprayed with PAM. Arrange the pineapple slices on top.
Mix the flour, salt and baking powder in a bowl.
Mix the liquid, canola oil, vanilla and Sucanat in another bowl.
Mix wet and dry ingredients together until moist and lumps have disappeared. Pour into pan over pineapple slices. Bake immediately. Bake 35 to 40 minutes or until toothpick comes out clean. Invert onto tray.