Preheat oven to 425℉ (220℃).
In a medium bowl, sift the flour, sugar, baking powder, baking soda, and salt.
Work in the butter just until the mixture is unevenly crumbly. Some larger chunks of butter remaining unincorporated are fine.
Stir in the dried pineapple and white chocolate chips.
Whisk the eggs, vanilla, buttermilk, and grated lime zest in a separate bowl.
Gently fold wet ingredients into the dry ingredients and stir until all is moistened and holds together in a ball.
Put the dough on a floured surface and pat it gently with your hands until it’s about ½ inch thick. Fold it on itself about 5 times, pressing down gently each time. Then gently press down until it’s a circle about an inch thick.
Slice with a sharp knife in half across the circle, then slice it in half again across for 4 equal portions (like a pie). Cut each portion in half for 8 triangular pie-like slices.
Separate the wedges and place them on an ungreased baking sheet, and brush with cream.
Bake at 425℉ (220℃) for 12-15 minutes or until lightly browned. Serve warm.