Blueberry Crumble Bars

We are spoiled with beautiful organic Irish blueberries in the summer and autumn. They are gorgeous to eat fresh as they are but if you are looking for a recipe to bake try these delicious crumble bars. They do crumble so keep one hand under to catch those crunchy crumbs.

We were paying a friend a visit so make a batch of these to have with tea and a catch up. My kids adore them, they are just sweet enough with lovely pops of jammy berries.

Shop for the wholesome organic ingredients in our shop.

Let us know if you make it, we love to hear from you.

Lou 🙂

Ingredients: Makes 12 bars

  • For the crumble base and topping:
  • 120g oats/1 ½ cups 
  • 65g brown sugar /¾ cup
  • 180g plain flour /1 ½ cups
  • 1/2 tsp baking powder
  • 90g butter
  • For the filling:
  • 230g/2 cups blueberries (fresh or frozen)
  • 40g granulated sugar 
  • ½ tablespoon cornflour 
  • Juice ½ lemon 


Step 1: Preheat the oven to 180ºC and line a 8in tin with parchment paper.

Step 2: Measure the flour, oats, brown sugar and baking powder into a bowl, mix well. Then add the butter and work it into the oats and flour with your fingers until it starts to clump together and feels like wet sand, this will take a few minutes.

Step 3: Tip HALF the mix into the tin. Push down into the tin until its spead out and even, make sure to get into the corners. Bake in the oven for 10 minutes. In the meantime mix the blueberries with the granulated sugar, cornflour and lemon juice. 

Step 4: When the base comes out of the oven top with the blueberries and scatter over the other half of the crumble mix.  Put it back in the oven to bake for another 25-35 minutes. 

Leave it to cool for an hour to set and then cut into bars.