Golden, buttery oat cookies studded with chewy pieces of dehydrated wild blackberry.
These Blackberry Oat Cookies are one of Cheryl’s simple ways of preserving a taste of blackberry season and enjoying it long after the fresh berries have disappeared from the hedgerows.
Dehydrating blackberries concentrates their flavour and gives them a lovely chewy texture, making them perfect for folding through these buttery oat cookies.
Golden and crisp around the edges with oats and little bursts of blackberry running through them, they’re an easy wild-inspired bake to enjoy with a cup of tea, pack for a walk or pop into a picnic basket.
And if you’ve dehydrated more blackberries than you know what to do with, this is a delicious way to use them!

bLACKBERRY oat cookies
Ingredients
- 170g caster sugar
- 170g plain flour
- 170g rolled oats
- 170g butter, melted
- 1 tsp bicarbonate of soda
- 1 tbsp golden syrup or honey
- 50g dehydrated blackberries
Method
Preheat the oven to 170°C and line a baking tray with baking parchment.
Melt the butter gently in a saucepan over a low heat.
Remove from the heat and stir in the golden syrup or honey.
Add the bicarbonate of soda and mix well.
In a large bowl, combine the caster sugar, plain flour and rolled oats.
Pour the melted butter mixture into the dry ingredients and mix thoroughly until everything is combined.
Gently fold through the dehydrated blackberries, distributing them evenly throughout the mixture.
Shape the mixture into balls and arrange them on the lined baking tray, leaving a little room between each one. Gently flatten each ball.
Bake for approximately 12 minutes, until golden around the edges.
Leave the cookies on the baking tray for a few minutes to firm up before carefully transferring them to a cooling rack.
A Note on Dehydrated Blackberries
Using dehydrated rather than fresh blackberries is important here. Fresh berries contain considerably more moisture and may change the texture and spread of the cookies.
Dehydrating your blackberry harvest is also a brilliant way of preserving them for baking throughout the year.
Foraging Safety
Only gather blackberries that you can confidently identify and harvest from clean locations away from obvious sources of pollution or spraying.
Wash your berries before using them and make sure they are properly dehydrated before storing to reduce the risk of spoilage.

