Heat the oven to 200C/180C fan/gas 6. Mix the flour, seeds and bicarb in a bowl, then mix together the milk and lemon juice in a small jug and pour it into the dry ingredients. Stir with a knife until the mixture comes together into a sticky dough.

Tip onto a lightly floured work surface and lightly shape into a ball with wet or floured hands, as it will be sticky to handle. Lift onto a floured baking tray, reshape if required, then sprinkle more seeds over the top and press them in lightly. Bake for 35-40 mins until firm and golden. Cool on a wire rack, then wrap in foil until needed. Will keep chilled for up to four days, or frozen for up to a month.