Best Oat Crunchies Recipe (With & Without Coconut)

If you love homemade, comforting treats, this easy South African oat crunchies traybake recipe is for you! Soft, buttery, chewy in the middle, and golden brown and crisp around the edges - it's made with rolled oats, coconut, flour and a touch of golden syrup.

It's perfect for sharing, a sweet treat with tea, parties or even a nostalgic bake sale favourite. And for those who prefer, I also share a popular mixed seeded oat crunchies without coconut under "Variations".

These oat crunchies are simply irresistible! They're packed with flavour, lightly spiced with cinnamon, and sweetened with a combination of brown sugar and granulated sugar.

I love how easy this recipe is, even for a first-time baker, and it's so rewarding to make a batch of these granny's-style crunchies that everyone will ask for seconds.

Traditionally made with dessicated coconut, yet they're extremely as I'll also show you a seeded variation which I shared at my local UK village event. They were an instant hit all the way from Cape Town!

Whether baked in a single tray as bars or cut into small squares as oat crunchie biscuits, these treats are perfect for any occasion.

You might also enjoy my crunchy anzac biscuit recipes on my sister-blog, The Carpenter's Daughter.

✔️ Why You'll Love This Recipe

Here's why this might just be the best South African crunchies recipe you'll ever make:

• Chewy, golden crunch in every bite
• Great snack idea for lunchboxes
• Made with simple, easy-to-find ingredients
• A buttery flavour that feels nostalgic and homemade
• Can be easily adapted with fruit, seeds, or nuts
• Works beautifully as breakfast bars, biscuits, or bite-sized squares
• A sweet treat that's better than store-bought oatmeal cookies

🛒 Whole Oat Crunchie Recipe Ingredient Notes

Please see the printable recipe card with exact ingredient quantities and preparation instructions at the bottom of this post.

Oats: Rolled oats give a chewy texture - quick porridge oats are not recommended

Plain flour (All Purpose) - with no rising agents. Or you can use wholemeal flour for more fibre.

Butter: Provides richness and flavour. Gently melted butter works perfectly, or swap it for coconut oil for a dairy-free option.

Golden syrup: Essential for chewiness and that classic South African crunchie flavour

Coconut: Any amount of coconut can be replaced with a mix of seeds (pumpkin, sunflower, sesame, linseeds, etc) for extra health fats, or dried fruit

Bicarbonate of soda (AKA baking soda): helps the crunchies brown beautifully, slightly lightens the texture.

Sugar: A combination of brown sugar and granulated sugar balances sweetness and crispness.

📋 Instructions

1. Melt butter and syrup:
First, preheat to 160°C fan / 180°C conventional. Line a 9×13 inch tray or cookie sheet with baking paper.

In a saucepan, gently melt butter with golden syrup over low heat. Stir until combined and remove from heat.

2. Mix dry ingredients
In a large mixing bowl, combine flour, rolled oats, desiccated coconut, brown sugar, granulated sugar, bicarbonate of soda (baking soda), salt, and cinnamon.

3. Combine the dry ingredients:
Next, pour the melted butter syrup mixture into the dry ingredients.

Now stir until fully coated and sticky.

Press into tray & bake:
Press the oat mixture evenly into the prepared tin (about 2-3 cm thick).

Then bake for 30 minutes until golden brown. Edges should be slightly darker - note: it hardens while cooling.

Let cool in the tray for 10 minutes, and transfer to a cooling rack and cut into squares. Then cool completely before serving.

Tip: A common first time mistake is overbaking because the crunchies may seem unset in the oven. Remember, they firm up as they cool. For a softer, slightly less chewy texture, bake for 20-25 minutes.

👩‍🍳 Substitutions

Depending on your dietary needs, here are a few simple swaps you can do to make the best South African crunchies recipe:

• Coconut-free - swap for a mix of seeds and nuts (see variation photo below)
• Butter - swap for butter spread which usually is a mix of milk, butter and rapeseed oil and although not as rich, we love how they're chewier, crispy and more golden (see photo below). Or try coconut oil.
• Dried fruit - Add raisins, sultanas, or chopped dates for a chewier, fruity crunchie.

⚖️ Variations

Here are some different ways you can enhance and truly personalise this recipe next time:

• Seeded Oat Crunchies - If you prefer oat crunchies without coconut, then try the following seed mix (30g pumpkin seeds, 30g sunflower seeds, 25g sesame seeds, 25g flaxseed) - I shared at a community event (photo above), which everyone loved!
• Fruity Bars - Fold in raisins or chopped dried fruit for half the mixture for a chewy variation.
• Chocolate Crunchies - Add chocolate chips or drizzle melted hot chocolate over cooled bars.

🔪 Equipment

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• 9×13 inch baking tray
• Baking paper or parchment
• Wooden spoon or spatula
• Medium saucepan

❄️ Storage

Storing - Store in an airtight container for up to 1 week.

Freezing - cool to room temperature and store in a freezer-safe container for up to 3 months.

Reheating - Warm slightly in the microwave to restore softness if desired.

🍽️ Serving Suggestions

• For a delicious twist, pair your oat crunchies with something creamy or fruity: try magical vegan banana ice cream made with just one ingredient for a soft, naturally sweet dip.
• Enjoy them alongside a warm Syn-free Persian rice pudding made in the multicooker for a comforting treat.
• For a refreshing option, serve your oat crunchies with a British strawberry thick shake perfect for summer evenings.
• Or keep it simple and wholesome with a quick, healthy 2-Syn Bircher muesli breakfast

❓ FAQ

➕ More Oat Recipes

Looking for more good recipes or easy desserts with oatmeal? Try these: