Introduction
Golden syrup, light brown sugar, and butter melt together before the porridge oats go in, which gives you a chewy tray bake with crisp edges and a dense center. It bakes for 25 minutes in an 18 cm square tin, then gets cut while still warm so the pieces stay neat. You can use it for lunchboxes, a quick snack, or a make-ahead bake that holds up well for a few days.
Recipe Details
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Total Time: 40 minutes
- Servings: 12
Ingredients
- 75 g butter or margarine
- 50-75 g light brown sugar
- 1 tablespoon golden syrup
- 175 g porridge oats
Instructions
- Put the butter or margarine, sugar, and golden syrup into a saucepan, and stir over a low heat until the fat and sugar have melted.
- Add the porridge oats and blend thoroughly.
- Press into a well-greased 18 cm square sandwich tin.
- Bake in the centre of a moderate oven at 180°C (350°F / gas mark 4) for 25 minutes or until evenly golden brown.
- Cut into rectangles in the tin whilst warm.
- Allow to become almost cold in the tin before removing.
- Enjoy!
Variations
- Use butter instead of margarine if you want a richer flavor and a slightly firmer set once the bars cool.
- Replace the light brown sugar with dark brown sugar for a deeper molasses note and a darker finish.
- Stir a handful of chopped nuts in with the porridge oats if you want more texture and a less uniformly chewy bite.
- Add a pinch of ground ginger or cinnamon to the melted butter, sugar, and syrup mixture for a spiced version that works well with the caramel flavor of the golden syrup.
- Press the mixture into a slightly larger tin if you want thinner, crisper pieces; the center will be less chewy.
Tips for Success
- Keep the heat low in the first step so the butter or margarine and sugar melt smoothly without scorching.
- Blend the porridge oats thoroughly into the syrup mixture so there are no dry patches that turn crumbly after baking.
- Grease the 18 cm square sandwich tin well, especially the corners, so the bars release cleanly after cooling.
- Pull the tin when the top is evenly golden brown; if you wait for a very dark color, the bars can turn hard once cold.
- Cut the tray bake while warm, then leave it in the tin until almost cold so the rectangles hold together instead of breaking.
Storage and Reheating
Store the cooled pieces in an airtight container with baking paper between layers. Keep them in the fridge for up to 1 week.
For longer storage, freeze them in a freezer-safe container or zip-top bag with baking paper between pieces for up to 3 months. Thaw in the fridge or at room temperature.
You do not need to reheat them, but you can warm a piece in the microwave for 10–15 seconds if you want a softer texture. For several pieces, use a 150°C oven for about 5 minutes.
FAQ
Can you use rolled oats instead of porridge oats?
Yes, if your rolled oats are similar in size to standard porridge oats. The texture will usually be a bit rougher and less compact.
Why do you cut it while warm?
The mixture firms up as it cools, so cutting early gives you cleaner rectangles. If you wait until it is fully cold, it is more likely to crack.
How do you know when it is done baking?
Look for an evenly golden brown surface and lightly browned edges. The center may still feel a little soft in the tin, but it will firm up as it cools.
Can you make it dairy-free?
Yes. Use margarine instead of butter, and check that the margarine is plant-based if you need a fully dairy-free result.
Attribution: Recipe text from “Cookbook:Flapjacks (Traditional Scottish Recipe)” on Wikibooks (© Wikibooks contributors).
Source: https://en.wikibooks.org/wiki/Cookbook:Flapjacks_%28Traditional_Scottish_Recipe%29
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Additions: intro, recipe image, recipe details (prep/cook/total time and servings), variations, tips for success, storage & reheating, and FAQ (ingredients & instructions unchanged).

