Adjust the oven temperature to 220°C/425°F.
Grease a baking sheet or use parchment paper.
Sift flour, baking soda, and salt into a large bowl.
Mix until the ingredients are well combined.
Combine the beaten egg, buttermilk, and honey.
Mix until a soft dough forms.
Knead the dough briefly on a floured board.
Shape the dough into a round loaf.
Cut a deep cross on top of the loaf.
Place the bread on the prepared baking sheet.
Bake in the oven for 30 to 35 minutes.
Check if the bread sounds hollow when tapped.
Remove from the oven and cool on a wire rack.
Your delicious Mary Berry Soda Bread is ready. Bon Appetit!