Preheat oven at 375˚F. Grease an 8x8 cast iron skillet with ½ Tablespoon of butter or line with parchment paper.
In a large mixing bowl, whisk together flour, sugar, salt, and baking soda. Cut the cold, salted butter into small pieces and use your fingers to work the butter into the flour mixture until crumbs about the size of peas form.
In a measuring glass, beat the egg and buttermilk together. Make a well in the center of the flour, and pour in the buttermilk egg mixture. Using a wooden spoon, gently mix until everything just comes together. Be careful not to over mix.
Empty out the dough on to a lightly floured work surface and begin to shape it into a round bread loaf. The dough will the shaggy and slightly sticky to the touch. If the dough is too sticky, add 1 tablespoon of flour at a time until it can hold its shape. Transfer the loaf to the prepared skillet.
Using a sharp kitchen knife, score the top of the loaf with an "X". Bake in the center of the preheated oven for 45-55 minutes, until the top is golden brown and a tester inserted comes out clean. The loaf should make a hollow sound if thumped. Allow to cool for 30 minutes on a cooling rack before slicing. Serve with butter and honey. Enjoy!