No need to bake a whole Irish soda to enjoy this warm quick bread!
Preheat your oven to to 425°F (220°C). Grease a 8-10 inch oven safe skillet or cake pan with butter or nonstick spray or a baking sheet.
MIX THE DRY INGREDIENTS
With a spatula, mix together the flour, sugar, baking powder and soda, and salt.
Add the cold and cubed butter, and incorporate into the dough by rubbing with your hands or a pastry cutter: the pastry cutter would be better to work this dough as it remains cold as you work it, unlike your hands.
Add the cold buttermilk in the mixture, and gently mix everything together. Like a scone, do not overwork your dough, or it will result in a tough bread.
When everything forms an homogeneous mass, transfer on a generously floured surface. Try not to incorporate to much flour, although it is needed to prevent the dough from sticking.
Work the dough to shape a boule: tuck it under itself and roll it on the working surface with your fingertips.
Transfer the dough on your skillet/cake pan/baking sheet, and wit a sharp knife, make a cross on top of your soda bread.
Bake for about 12-15 min, or until a nice brown color. Serve warm with salted butter or jam!