For the biscuits: Preheat the oven to 450 degrees F. Grease a baking sheet.
In a large mixing bowl, combine the flour and the chilled, cubed butter. Using a pastry blender, cut the butter into the flour until it resembles a coarse meal. Alternatively, combine the flour and chilled butter in a food processor and pulse to combine until it resembles coarse meal, then transfer to a large mixing bowl.
Stir in the baking powder, salt, sugar and baking soda. Form a well in the center of the flour and pour in the buttermilk. Mix with a fork until all of the ingredients are incorporated and the dough begins to shape into a ball. (The dough will be slightly dry.)
Dust a clean work surface with flour, coat your palms, and rub some on a rolling pin. Turn out the dough onto the work surface. Knead the dough for 1 to 2 minutes, folding it over onto itself each time. Pat the dough into a rectangle and then roll the dough to about 1/2-inch thick. Dip a 3-inch biscuit cutter or the rim of a 3-inch-wide glass in flour, and then cut out the biscuits. Alternatively, use a knife to cut the biscuits into 3-inch squares. Reshape the leftover dough into a ball, roll it out again, and cut out more biscuits. Repeat this process until the dough is gone.
Place the biscuits on the baking sheet and bake until the tops are golden brown, 12 to 14 minutes. While the biscuits are still hot, brush the biscuits with the 2 tablespoons softened butter.
For the butter: Stir or mash the butter and molasses or honey together to combine, leaving a few streaks of molasses visible.
Serve the flavored butter with the warm biscuits.
Instead of butter, sometimes I like to using a non-dairy spread to make the biscuits; it gives them the same texture as shortening.