In a medium bowl, whisk or sift together flour, sugar, baking powder, soda and salt
Work in the butter just until the mixture is unevenly crumbly; it's OK for some larger chunks of butter to remain unincorporated. Stir in the chocolate and pineapple
Whisk together eggs, vanilla, buttermilk and grated limes
Gently fold wet ingredients into dry ingredients and stir until all is moistened and holds together (like a ball)
Put dough on floured surface, and pat (gently!) with your hands only, until dough is about 1/2” thick. Fold dough over on itself about 5 times, then gently press down until about 1 inch thick
Use a large knife to slice the dough into 4 equal portions. Cut diagonally to produce 8 triangular slices of dough.
Separate wedges and place on an ungreased baking sheet. Brush with cream
Bake at 400° for 12-15 minutes or until lightly browned