The Anzac Biscuit was designed to last
Anzac Biscuits are tied to the care packages sent to Australian and New Zealand soldiers in World War I, though historians still argue over how many actually reached the front. The recipe had no eggs, which wouldn't survive the trip, and used golden syrup, butter and brown sugar to bind it and give it flavour. The biscuits had to last weeks at sea and then weeks more at the front. So the original Anzac was hard. That was the point, because hard meant it survived.
The cafe Anzac is a different biscuit. It gets eaten with a coffee at the table, not posted to Gallipoli, so it should be chewy, fresh and golden. That's the one that sells from the cabinet.
The history explains why the recipe has so few ingredients and no raising agent except bicarbonate of soda. Every ingredient holds the biscuit together as well as flavouring it. Nothing is spare.
The bicarb moment is the whole game
This is the step that decides the texture.
Melt the butter and golden syrup gently in a saucepan until smooth (don't let it boil). Dissolve the bicarbonate of soda separately in 30ml of boiling water. It will fizz hard. Pour the foaming bicarb water straight into the melted butter and syrup, and the whole lot froths up.
That foam is what lifts the biscuit, and it's the only lift the recipe has. Add the bicarb water cold and you get no lift. Leave the foamed mixture on the bench for a minute before it goes into the dry ingredients and the lift dies. You've got roughly 15 seconds from foam to mix.
Kitchens that get this right move fast here. The dry ingredients are weighed and waiting in a large bowl. The wet ingredients are warming. The bicarb water is boiled and ready. As soon as the bicarb hits the syrup, the cook stirs and pours the foaming liquid straight into the dry ingredients. With everything set up, 15 seconds is plenty.
Twelve minutes is chewy, fifteen is crisp
The other thing that matters is bake time. Same recipe, and the timer decides the texture.
At 160 degrees fan forced for 12 minutes, the biscuit comes out deep golden at the edges and slightly soft in the centre, then firms up on the tray to a chewy finish. That's the cafe cabinet biscuit, and customers love it.
At 15 minutes it's crisp all the way through. It snaps cleanly and keeps longer. That's the one for gift tins, the one that travels.
At eighteen minutes it's overbaked. The biscuit goes hard instead of crisp and the golden syrup turns bitter. At twelve minutes it looks underdone and you'll be tempted to leave it in. Trust the look and pull it out anyway.
Anzacs firm up a lot on the tray as they cool. One that looks slightly underdone out of the oven will be perfect once it's cool. One that looks fully done out of the oven will be hard. Trust the underdone look.
Tablespoon sized balls, flattened slightly
Portion size matters if you want every batch the same. The recipe makes 24 tablespoon sized balls (about 32 grams each). Space them five centimetres apart on lined trays, because Anzacs spread a lot, and flatten each one gently with the back of a spoon to about 1 centimetre thick. You get 24 even biscuits a batch, each about 28 grams baked, which is the right size for a single cabinet serve at $4 to $5.
It's tempting to eyeball the portions, and that's the second thing that makes Anzacs vary from batch to batch. Big ones underbake in the set time and small ones overbake. A 32 gram portion scoop or a tablespoon measure fixes it.
Get the bicarb moment right and the rest follows
The Anzac is one of the simplest things a cafe will ever bake. How good it is comes down to a 15 second window, when foaming bicarb water hits hot syrup and lifts the whole dough.
Get that right, weigh the portions and pull the trays at twelve minutes. You'll have the Anzac customers remember from their grandmother's kitchen, the one that's gone from the cabinet by Tuesday.
One biscuit, one foam, one timer. Keep those consistent and customers will keep coming back to the cabinet for them.