Round rusks, the classic dakos shape: divide the dough into 12 to 16 equal pieces. Roll each into a ball then flatten into a disc roughly 8cm across and 2cm thick. Score a horizontal line around the equator of each disc with a sharp knife, not cutting all the way through. This score line is what lets you split the rusk cleanly after the first bake.
Log and slice, the simpler method: shape the dough into two logs roughly 20cm long and 5cm wide. Place on a parchment-lined baking sheet. Score across the top at 2cm intervals, again not cutting all the way through.
Cover the shaped dough and rest for 30 minutes. Preheat oven to 400°F / 200°C.
Bake for 25 to 30 minutes until the outside is firm, golden and sounds hollow when tapped. The inside will still be slightly soft. This is correct since the second bake handles that.
Remove from the oven and cool for 15 to 20 minutes until comfortable to handle. While still warm, not hot and not cold, split the rusks along the scored lines. For discs, pry apart into two thinner rounds. For logs, slice along the score lines into individual pieces. Arrange all pieces cut-side up on baking sheets.