Preheat the oven to 350 degrees f

In a mixing bowl, whisk together dry ingredients.  Flour, salt, baking powder, and baking soda. Set aside.

In a second mixing bowl, mix wet ingredients: oil, crushed pineapple, vanilla extract, sugar, and egg.

Add the wet ingredient mixture to the dry ingredients.  Stir well.

Using a cookie scoop, fill the muffin tins with batter.

Cook in the oven for 20-23 minutes.  Make sure a toothpick can come out clean before removing them from the oven.  You can sprinkle powdered sugar on top if you like.

Let muffins cool and serve.