Preheat the oven to 400 degrees F. In a large bowl, whisk
together the flour, baking powder, salt, baking soda
and chives. Using a pastry blender
or your hands, cut in the lard until the mixture resembles coarse crumbs. Make a well in the center and pour in the buttermilk
. Mix gently until a soft dough
Turn the dough out onto a lightly floured surface and knead
about 5 times. Roll out to 1-inch thick. Cut out using a 2 1/2-inch cutter. Reroll the scraps and cut out the rest. Place on an ungreased baking sheet and bake until the biscuits are puffed and golden brown, about 20 minutes.
In a small bowl, whisk the whole grain mustard, honey and Dijon mustard until smooth.
When the biscuits
are cool enough to handle, split and spread the bottoms with the honey
mustard. Add the ham
and the biscuit top. Serve warm or at room temperature.