Recipe | Flapjacks using condensed milk

Gorgeous chewy flapjack with the added sweetness of condensed milk.

Making flapjacks with condensed milk simple recipe uk

I suddenly wanted to bake something using condensed milk… not sure what prompted that! I haven’t made flapjacks for ages and wondered if there were flapjacks recipes out there featuring condensed milk. I found the one I used at The Pink Whisk.

Ingredients (makes 16-24 slices of flapjack)

  • 225 g / 8 oz caster sugar
  • 4 tbsps golden syrup
  • 250 g / 9 oz butter or margarine
  • 200 g / 7 oz condensed milk (half the normal-sized tin)
  • 450g / 16 oz oats

For the topping:

  • 300 g / 10.5 oz chocolate (your preferred type)
  • Optional: 50 g / 2 oz white chocolate, for decorative swirl


Preheat the oven to 180 degrees C (160 for fan ovens) / 350 degrees F / Gas Mark 4.

Prepare your tin. The original recipe calls for a 20 cm square (8 x 8 inch) baking tin. Mine measures 24 x 20 x 4 cm (approx. 9.5 x 8 x 2 inches) and was fine. Line your tin with greaseproof baking paper, sticking the paper to the tray using a little butter or margarine.

Put the sugar, golden syrup, and butter into a large pan and warm over a low heat until all the ingredients have melted. Use the largest pan you have so there’ll be room for the oats later.

Making flapjacks with condensed milk recipe uk

Remove the pan from the heat and add the condensed milk. Stir untilcombined. Then add the oats and stir until they’re all coated with the wet ingredients.

Making flapjacks with oats and condensed milk recipe uk

Spoon the flapjack mixture into your tin and spread out evenly, pressing down to make sure the mixture binds together.

Flapjacks with condensed milk recipe uk

The original recipe says bake for 20 minutes, but I found they needed longer: 25-30 minutes. Take them out of the oven when the top is golden brown and the mixture no longer appears tacky.

Making flapjacks with condensed milk easy recipe uk

After 5-10 minutes, run a knife around the edge of the tin to loosen the flapjack so you’ll be able to get it out of the tin later. Now leave the flapjack to cool completely in the tin before topping with melted chocolate. I used the microwave to melt the chocolate. Break it into small pieces and put in a microwave-friendly bowl. Heat in 30-second bursts, stirring well between bursts. Pour over the top of your flapjack.

If you want the white swirl effect, while the base chocolate layer is still warm, melt a little white chocolate and drizzle it over the main chocolate layer. Trail the tip of a knife or a skewer through the chocolate drizzle.

Making flapjacks with condensed milk and chocolate recipe uk

Leave the chocolate to set. You can speed up the process by putting it in the fridge.

You can slice the flapjack while the chocolate is still slightly liquid or when set (when it might crack).

Making flapjacks with condensed milk quick recipe uk

Store in an airtight container in a cool, dry place. Best eaten within a week.

Make flapjacks with condensed milk recipe uk

A plea from this baker/writer

If you’ve read this far and have found this recipe, or any of my recipes useful, please consider returning the favour by buying one of my books! The ebooks cost less than a coffee and they are free with Kindle Unlimited.

Claire Huston romance novels Twitter pinned pic June 2022

Claire Huston / Art and Soul

24 thoughts on “Recipe | Flapjacks using condensed milk

    • I didn’t know that!! 🙂
      Golden syrup is sugar syrup, but you can substitute corn syrup for it in baking because they behave the same (although taste totally different if you were to eat the from the tin – not that I’d want to do that!). Corn syrup should work fine.
      The flapjacks are incredibly moreish. I had one and thought, “right that’s is for today” and then suddenly I’d eaten three of them!

      Liked by 1 person

  1. I use condensed milk in the recipe I use for flapjacks. Mine adds dried aprocots, mixed dried fruit and pumpkin seeds so that I can pretend it has healthy benefits too.
    In fact I have a whole recipe book that uses condensed milk, it’s called A Passion For Puddings by Phil Vickery. It looks like you can get it on Amazon

    Liked by 1 person

    • Wow! I’m off to look at that book now 🙂 Thank you! I still don’t know why I suddenly fancied using it. My next recipe features it too because I had to use up the other half of the tin!
      I did think about adding sultanas. Pumpkin seeds are a lovely idea 🙂

      Liked by 1 person

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