Irish Boxty

Grate raw potatoes and wring out excess liquid using a kitchen towel.

Combine cold mashed potatoes and grated potatoes in a large bowl.

Sift in flour and baking soda, then stir to incorporate.

Gradually add buttermilk while mixing until a thick batter forms.

Melt butter in a skillet over medium heat.

Scoop batter into the skillet and flatten into rounds.

Fry until golden brown and crispy on both sides.