The Vegan Lunchbox

  • Meet Jac
  • Recipes
  • eBooks
  • Pack Lunch
  • Subscribe
menu icon
go to homepage
  • Meet Jac
  • Recipes
  • eBooks
  • Pack Lunch
  • Subscribe
subscribe
search icon
Homepage link
  • Meet Jac
  • Recipes
  • eBooks
  • Pack Lunch
  • Subscribe
×
Home » Recipes » Cakes, Bakes & Desserts

Quick and Easy Microwave Blackcurrant Lemon Flapjacks

Modified: May 13, 2026 by Jacqueline Meldrum

Jump to Recipe

For a quick, sweet snack, try these easy microwave blackcurrant lemon flapjacks. These chewy oat bars are perfect for a fruity treat.

Easy Microwave vegan blackcurrant and lemon flapjacks.

I always used to bake flapjacks in the oven, but since I created my strawberry jam flapjacks, which are baked in the microwave, I am completely converted.

They are so soft, chewy, and unctuous!

Quick to make too, and these microwave blackcurrant lemon flapjacks are really rather special.

Jump to:
  • ♨️ Microwave flapjacks are so easy!
  • 👩🏻‍🍳 Scottish-style flapjacks should be chewy
  • ♨️ Baking in a microwave
  • 💭 Which dish to use for baking in the microwave
  • 📋 What you need to make blackcurrant flapjacks
  • 📖 Variations to the recipe
  • 💭 Storing fruity oat bars
  • 📋 Related recipes
  • ⭐ Save your recipes for free!
  • 👩🏻‍🍳 How to make quick & easy microwave blackcurrant lemon flapjacks
  • 📖 Recipe
  • 💬 Comments

At a glance - microwave blackcurrant and lemon flapjacks

⏲️ Ready in: 14 minutes
👪 Serves: 8
🍽 Calories: 333 (cut into 16 squares to half the calories)
🧾 Main ingredients: oats, fresh lemon, golden syrup (or maple syrup), plain flour (all purpose flour), brown sugar, blackcurrant jam (you can change the jam flavour)
👩🏻‍🍳 Suitable for: vegan, plant-based, dairy-free, egg-free, vegetarian

Summarise & save this recipe:

ChatGPT
Google AI
Perplexity
Grok
Claude
Add us as a trusted site on Google

♨️ Microwave flapjacks are so easy!

Melt the wet ingredients in the microwave and pour the buttery liquid into the dry ingredients, mix well, and press into a buttered microwave dish.

vegan blackcurrant and lemon flapjacks.

Then bake in the microwave for a few minutes.

And voila, that's it, the most fruity flapjacks (oat bars) for an easy snack.

👩🏻‍🍳 Scottish-style flapjacks should be chewy

If you're making flapjacks using a Scottish recipe, they should be soft and chewy.

None of this crispy nonsense like granola bars, oh no!

These traditional oat bars should be chewy and have a caramel flavour from the brown sugar and golden syrup (Tate & Lyle golden syrup of course) and taste very buttery, even if you are using a plant-based butter.

You can read about the porridge drawer, where flapjacks originated, in this Scottish walnut & raisin flapjack recipe page over at tinnedtomatoes.com.

blackcurrant lemon flapjacks in a ceramic dish.

♨️ Baking in a microwave

A microwave is a good tool for quick bakes like these flapjacks or mug cakes, like these gingerbread mug cakes.

You do have to be aware that microwaves vary in power, so do read the recipe below carefully and the notes which give the power of my microwave and tips for baking in a less powerful or more powerful model.

You also need to use a microwave-safe dish that is suitable for baking in the microwave.

Check the base of your dish for the microwave-safe logo.

Also, try these quick apple and cinnamon flapjacks, that are baked in the microwave.

💭 Which dish to use for baking in the microwave

Ceramic dishes, glass dishes, plastic dishes or silicone bakeware are all safe options for using to bake in the microwave.

DO NOT USE metal, styrofoam, single-use plastic or crystal glass in the microwave.

I have a ceramic dish that works well.

It is 13 ½ cm x 18 cm (5 ½ inches x 7 ¼ inches) approximately. Your dish can be a bit bigger or smaller; the recipe is very forgiving.

chewy blackcurrant oat bars.

📋 What you need to make blackcurrant flapjacks

Here are the simple ingredients you need to make these fruity flapjacks, which are very moreish sweet treats.

  • Butter - plant-based butter (vegan butter) or margarine
  • Golden syrup - Lyle's golden syrup is the best, you could use maple syrup but it doesn't take quite as good
  • Lemon zest
  • Lemon juice - freshly squeezed lemon juice
  • Plain flour - all purpose flour
  • Porridge oats - rolled oats
  • Demerara sugar - brown sugar or light soft brown sugar
  • Salt - just a pinch
  • Blackcurrant jam - or blackcurrant preserves

See the full ingredient list, method and notes in the printable recipe card below.

📖 Variations to the recipe

Here are a few tweaks you can make to this recipe for easy jam flapjacks to change it slightly.

raspberry jam.
  • Maple syrup - if you can't get hold of golden syrup, I know it can be difficult to get hold of in the US
  • Blueberry jam - or raspberry jam instead of blackcurrant jam
  • Lime juice & zest - or orange juice and orange zest instead of lemon juice and zest
  • Dried fruit - you can add some dried fruit to the flapjacks, think raisins, sultanas, dried cranberries or dried mango
  • A drizzle of icing - mix 2 tablespoons of icing sugar (confectioner's sugar) with 1 teaspoon of lemon juice, mix until you have a thick icing to drizzle over the cooled flapjacks]
  • Drizzle of dark chocolate - alternatively, you could melt some dark chocolate and drizzle it over the cooled flapjacks

💭 Storing fruity oat bars

Once cool, the oat bars/flapjacks can be stored in an airtight container.

I like to line it with kitchen roll (kitchen paper), to catch any moisture.

Store them in the fridge for 4-5 days.

Although it's unlikely they will last that long.

Eat them for an easy breakfast on the go, add them to lunch boxes or enjoy them with a cuppa in the afternoon when you need an energy boost.

📋 Related recipes

Looking for other snack recipes made with oats? Try these:

  • quick and easy microwave jam flapjacks.
    Microwave Jam Flapjacks - Quick and Easy Recipe
  • Healthier No-Bake Tahini & Date Brownie Balls.
    Best Date & Tahini Brownie Balls (no-bake bites)
  • easy vegan peanut butter squares with oats and chocolate
    Vegan Peanut Butter Squares with Chocolate & Oats - no-bake
  • No-Bake Raspberry Almond Bars.
    Vegan Raspberry Almond Bars - No-Bake Recipe

Use the search icon or the recipe index at the top of this page to browse other easy recipes.

⭐ Save your recipes for free!

Hit the heart to save this and other recipes.

Once logged in, you can save your favourite recipes and access them by hitting the heart on any of my recipes or going to grow.me where they will be stored for you for free.

👩🏻‍🍳 How to make quick & easy microwave blackcurrant lemon flapjacks

These step-by-step photos will show you easy microwave flapjacks. The full printable recipe is below these photos.

blackcurrant lemon flapjacks step 1.

Step 1

  • Grease your baking dish well so the flapjacks don't stick.
  • Add the butter, lemon juice, lemon zest and golden syrup to a microwaveable bowl.
  • Microwave for about 1 minute until the butter has melted.
blackcurrant lemon flapjacks step 2.

Step 2

  • Add your flour and oats to a large mixing bowl.
  • Next, add the brown sugar and salt.
  • Give it a good mix to combine well.
blackcurrant lemon flapjacks  step 3.

Step 3

  • Pour the melted butter mixture into the dry ingredients and mix well until all the butter has been absorbed.
  • Spoon just over half the flapjack mixture into your prepared dish and pack firmly by pressing down the mixture with the back of a spoon until firm and smooth.
blackcurrant lemon flapjacks step 4.

Step 4

  • Dollop jam onto the firmly packed flapjack base and spread evenly to cover the surface of the flapjacks.
  • Crumble the rest of the mixture evenly across the top and once more press down firmly with a spoon, don't worry if some of the jam shows through, it looks rather appealing.
blackcurrant lemon flapjacks step 5.

Step 5

  • Bake in the microwave until golden brown. The oat bars should be soft and springy to the touch for the most delicious, chewy flapjacks.
  • Once cool, cut into bars.
  • Serve and enjoy!

📖 Recipe

vegan blackcurrant and lemon flapjacks.

Quick and Easy Microwave Blackcurrant Lemon Flapjacks

Jacqueline Meldrum
For a quick, sweet snack, try these easy microwave blackcurrant lemon flapjacks. These chewy oat bars are perfect for a fruity treat.
5 from 3 votes
Print Recipe Pin Recipe Save Recipe Saved!
Prep Time 5 minutes mins
Cook Time 7 minutes mins
Resting Time 2 minutes mins
Total Time 14 minutes mins
Course Breakfast, snacks
Cuisine Scottish
Servings 8 bars
Calories 333 kcal

Ingredients
 
 

wet ingredients

  • 150 g butter (plant-based butter or margarine)
  • 70 g golden syrup (maple syrup if you can't find golden syrup)
  • 1 tablespoon lemon zest (approx) (zest from 1 lemon)
  • 2 tablespoons lemon juice

dry ingredients

  • 200 g porridge oats (rolled oats)
  • 100 g plain flour (all purpose flour)
  • 120 g brown sugar
  • 1 pinch salt

fruity filling

  • 3 tablespoons blackcurrant jam
InstacartGet Recipe Ingredients

Instructions
 

  • Grease your baking dish well so the flapjacks don't stick.
  • Add the butter, lemon juice, lemon zest and golden syrup to a microwaveable bowl.
  • Microwave for about 1 minute until the butter has melted. Set aside.
  • Add your flour and oats to a large mixing bowl.
  • Next, add the brown sugar and salt and give it a good mix to combine.
  • Pour the melted butter mixture into the dry ingredients and mix well until all the butter has been absorbed.
  • Spoon just over half the flapjack mixture into your prepared dish and pack firmly by pressing down the mixture with the back of a spoon until firm and smooth.
  • Dollop jam onto the firmly packed flapjack base and spread evenly to cover the surface of the flapjacks.
  • Crumble the rest of the mixture evenly across the top and once more press down firmly with a spoon, don't worry if some of the jam shows through, it looks rather appealing.
  • Bake in the microwave (see notes below) for 4 minutes, allow to rest for 2 minutes, then microwave for another 3 minutes until golden brown.
  • The oat bars should be soft and springy to the touch for the most delicious, chewy flapjacks.
  • Once cool, cut into bars
  • .Serve and enjoy!

Notes

  • You can cut the bars into 12 pieces for a lower calorie snack.
  • You can change the flavour of the jam too!
  • My microwave is 800 watts, if yours is more powerful the flapjacks will need a little less time and if it is less powerful, they will need a little longer. They should be springy but cooked to the touch.
  • Store in an airtight container in the fridge for 4-5 days.

Nutrition

Serving: 1 barCalories: 333kcalCarbohydrates: 54gProtein: 5gFat: 17gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 1gCholesterol: 40mgSodium: 134mgPotassium: 139mgFiber: 3gSugar: 26gVitamin A: 469IUVitamin C: 3mgCalcium: 35mgIron: 2mg
Tried this recipe?Let us know how it was!
Microwave blackcurrant lemon flapjacks recipe.
Easy Microwave Blackcurrant Lemon Oat Bars Recipe.
Blackcurrant and lemon oat bars recipe.

More Easy Vegan Cakes, Bakes & Desserts

  • easy apple and cinnamon oat flapjacks
    Microwave Apple & Cinnamon Flapjacks - Quick & Easy
  • easy peanut butter and date chocolate brownie bars.
    Easy Peanut Butter & Date Chocolate Brownie Bars
  • vegan creamy raspberry jelly dessert pots.
    Easy Creamy Raspberry Jelly Pots - Dairy-Free & Vegan
  • Vegan chocolate orange mousse made with silken tofu.
    Easy Vegan Chocolate Orange Mousse with Silken Tofu

Comments

  1. Scott says

    January 03, 2026 at 12:02 am

    5 stars
    oh yes please, a well tasty recipe. I approve

    Reply
    • Jacqueline Meldrum says

      January 03, 2026 at 12:07 am

      Oh yes they are very moreish and don't last long in my house.

      Reply
  2. Belinda says

    January 03, 2026 at 12:00 am

    5 stars
    Cannot wait to try these they look so good.

    Reply
    • Jacqueline Meldrum says

      January 03, 2026 at 12:06 am

      Let me know what you think once you have tried them Belinda. I am sure you will enjoy them.

      Reply
  3. Jill says

    January 02, 2026 at 11:47 pm

    5 stars
    Jacqs those look so good and I loved the strawberry jam flapjacks. I am going to buy some blackcurrant jam and make them. Jill x Oh and Happy New Year!

    Reply
    • Jacqueline Meldrum says

      January 02, 2026 at 11:57 pm

      You will love these Jill and happy new year. I hope you had a good Christmas too.

      Reply
5 from 3 votes

Leave a comment Cancel reply

Your email address will not be published. Required fields are marked *

Recipe Rating




Jacqueline Meldrum - Recipe Developer.

Welcome to The Vegan Lunchbox.

If you need tasty lunch inspiration, you've come to the right place. Easy recipes and ideas from my Scottish kitchen.

Jac x

Read more -

Popular Recipes

  • Quick and easy pickled red cabbage.
    Easy Quick Pickled Cabbage for Tacos or Sandwiches
  • recipe for baked sweet potatoes cooked in the air fryer
    Easy Air Fryer Baked Sweet Potatoes
  • quick and easy balsamic tomatoes recipe.
    Easy Marinated Cherry Tomatoes with Balsamic Vinegar
  • Falafel beet salad wrap with tahini dressing.
    Lebanese Falafel Wrap with Tahini Dressing
  • Quick & Easy Vegan Lemon Mousse - Dairy-Free Dessert.
    Quick & Easy Vegan Lemon Mousse - Dairy-Free Dessert
  • easy vegan chocolate pots
    Easy Vegan Chocolate Mousse with Dates

Salad Days

  • VeganTex Mex Corn Chopped Salad
    Tex Mex Corn Chopped Salad with Vegan Feta
  • Vegan Cheese Ploughman's Lunch
    Vegan Ploughman's Lunch
  • Vegan dill potato salad in a glass bowl
    Dill Potato Salad
  • Balsamic beet slaw in a stripy bowl
    Easy Balsamic Beet Slaw
  • Best Vegan Couscous Salad with Lentils and Feta.
    Best Vegan Couscous Salad with Lentils & Feta Cheese
  • Vegan Macaroni Salad in a bowl
    Vegan Macaroni Salad (quick & creamy)

Rate This Recipe

Your vote:




A rating is required
A name is required
An email is required

Recipe Ratings without Comment

Something went wrong. Please try again.