Why does parkin taste better the next day?

The oatmeal and syrup continue to soften and meld after baking, giving the bars a deeper flavor and chewier texture after 1 to 2 days.

Can I cut the bars while warm?

It is better to cool them completely in the tin first. Warm parkin is soft and sticky, so cooling gives cleaner slices.

Can I use molasses instead of black treacle?

Yes. Unsulphured molasses is a good substitute and gives the bars a rich, dark flavor similar to treacle.

How do I know the bars are baked?

The edges should look set and the top should be golden, while the center can remain slightly soft. It will firm as it cools.

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Classic British Parkin Biscuit Bars with Molasses and Ginger

Name: Classic British Parkin Biscuit Bars with Molasses and Ginger
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Yield: 12 servings
Cuisine: British
Ingredients: 125g unsalted butter, softened; 125g golden syrup; 125g soft brown sugar; 150g medium oatmeal (rolled oats); 150g self-raising flour; 2 teaspoons ground ginger; 1 teaspoon mixed spice; 1 teaspoon baking powder; 120ml black treacle or molasses; 1 large egg

By Beginnerbakes Test KitchenReviewed by Beginnerbakes Editorial TeamPublished May 12, 2026 · Updated Jun 27, 2026

British 50 mins classiceasybeginner-friendlyspicednut-freeholidaycomfort-food

Enjoy these chewy, spiced British Parkin biscuit bars made with rich molasses and warming ginger. This nut-free, beginner-friendly recipe is perfect for holiday baking and comfort food cravings.

Classic British Parkin Biscuit Bars with Molasses and Ginger

Prep 15 min

Cook 35 min

Total 50 min

Servings 12

Difficulty easy

Cuisine British

Ingredients

Servings 12

125g unsalted butter, softened
125g golden syrup
125g soft brown sugar
150g medium oatmeal (rolled oats)
150g self-raising flour
2 teaspoons ground ginger
1 teaspoon mixed spice
1 teaspoon baking powder
120ml black treacle or molasses
1 large egg

Measured ingredients for BeginnerBakes British parkin biscuit bars with molasses and ginger

Instructions

Preheat your oven to 340 degrees F (170 degrees C). Lightly grease a 20 cm square baking tin and line the base and sides with parchment paper.
In a medium saucepan over low heat, melt the butter, golden syrup, brown sugar, and black treacle or molasses. Stir until smooth and glossy, then remove from the heat.
In a large mixing bowl, sift together the self-raising flour, baking powder, ground ginger, and mixed spice.
Stir the oatmeal into the dry ingredients until evenly combined.
Lightly whisk the egg in a small bowl, then stir it into the warm syrup mixture until fully combined.
Pour the wet mixture into the dry ingredients and stir with a wooden spoon or spatula until a sticky, even batter forms.
Scrape the batter into the prepared tin and press it firmly into an even layer, smoothing the top with a spatula or the back of a spoon.
Bake for 30 to 35 minutes, until the top is golden and the edges feel set while the center is still slightly soft.
Cool completely in the tin so the bars firm up and develop their chewy texture.
Lift the cooled parkin out using the parchment paper and cut into squares or bars.
Store in an airtight container. The flavor and texture improve after 1 to 2 days.

BeginnerBakes parkin batter pressed into a square tin with cooled bars nearby

Tips

Equipment Needed

Use a 20 cm square baking tin, parchment paper, a medium saucepan, a large mixing bowl, a sieve, and a sturdy spatula or wooden spoon. The batter is sticky, so parchment with overhanging sides makes lifting and slicing much easier.

Ingredient Prep Notes

Melt the butter, syrup, sugar, and treacle gently over low heat so the mixture becomes glossy without boiling hard. Stir the oatmeal into the dry ingredients before adding the wet mixture so the bars bake with an even chewy texture.

Oven Note

Preheat fully to 340 degrees F and bake on the middle rack so the edges set without scorching. Pull the tin when the top is firm and golden but the center still feels slightly soft, because parkin firms as it cools.

Easy Upgrade Ideas

Add orange zest or a pinch of cinnamon for a brighter holiday flavor. For a giftable finish, drizzle cooled bars with dark chocolate or cut them into small squares and wrap after they have rested overnight.

Frequently Asked Questions

Why does parkin taste better the next day?: The oatmeal and syrup continue to soften and meld after baking, giving the bars a deeper flavor and chewier texture after 1 to 2 days.
Can I cut the bars while warm?: It is better to cool them completely in the tin first. Warm parkin is soft and sticky, so cooling gives cleaner slices.
Can I use molasses instead of black treacle?: Yes. Unsulphured molasses is a good substitute and gives the bars a rich, dark flavor similar to treacle.
How do I know the bars are baked?: The edges should look set and the top should be golden, while the center can remain slightly soft. It will firm as it cools.

Ingredient Replacements

Use black treacle for the most traditional British parkin flavor, or use unsulphured molasses for a similar deep sweetness. If golden syrup is unavailable, light corn syrup or honey can work, though the flavor will be less classic.

Plain flour can replace self-raising flour if you add 1 1/2 teaspoons baking powder for every 150g flour. For a gluten-free version, use certified gluten-free oats and a gluten-free self-raising flour blend.

A firm dairy-free baking stick can replace butter, and a flax egg can replace the egg if needed. Let the bars cool fully before slicing because substitutions can make the crumb more delicate while warm.

Storage and Reheating

Cool the parkin biscuit bars completely, then store them in an airtight container at room temperature for up to 5 days. The flavor is best after the first day, so this is a good make-ahead bake.

Freeze sliced bars for up to 2 months with parchment between layers. Thaw at room temperature, or warm gently in a 300 degrees F oven for 3 to 4 minutes if you prefer them slightly soft.

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Classic British Parkin Biscuit Bars with Molasses and Ginger

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Ingredients

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