Name: Raspberry Crumble Bars
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Yield: 16
Ingredients: 188g (1 1/2 cup) all-purpose flour; 45g (1/2 cup) old-fashioned oats; 65g (1/3 cup) granulated sugar; 1 tsp lemon zest; 1/2 tsp baking powder; 1/2 tsp salt; 140g (10 Tablespoons) Westgold unsalted butter, melted; 310g (2 1/2 cups) fresh or frozen raspberries; 65g (1/3 cup) granulated sugar; 1 tbsp cornstarch; 1/2 tbsp lemon juice; 1 tsp vanilla; 1 tsp lemon zest; Pinch of salt

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These raspberry crumble bars are delicious, with a homemade tangy raspberry filling, buttery base, and crumble topping. They’re so easy to make, with minimal effort and use the same dough for the base and topping!

Ad- This post has been sponsored by Westgold butter

The combination of tangy raspberries with a buttery base is so good. For the bottom crust and topping, I’ve used Westgold butter, which is rich and flavorful. It’s made with milk from grass-fed cows, farmed on the West Coast of New Zealand’s South Island, and uses a traditional churning process.

The crumble topping and base are made from a simple shortbread dough, adding oats and lots of butter to make it extra tender. The raspberry mixture uses frozen or fresh raspberries. Before spreading on the base, they will be cooked into a tart and sweet raspberry jam.

For more raspberry recipes, check out this raspberry chocolate mousse or raspberry cheesecake bars!

Ingredients

Here are the simple ingredients needed for this raspberry bars recipe. Find the full recipe and the amounts written in the recipe card at the bottom of this post.

Raspberries – fresh or frozen. Juicy raspberries bring a tang that contrasts beautifully with the sweet crumble. Using frozen raspberries means you can make these any time of year.
White sugar: Adds sweetness. You could also use soft brown sugar to bring a richer flavor.
Lemon juice & lemon zest: Lifts the flavor of the raspberries.
Purpose flour: The base structure.
Old-fashioned oats: Brings a bit of texture.
Baking powder: For a little lift
Westgold butter: Melted butter brings all the flavor.
Vanilla extract: This is added to the raspberry filling
Cornstarch: Thickens the filling.
Salt: To balance the sweetness.

Equipment Needed

8×8 square pan lined with parchment paper.

Method

Oat crumble mixture

Preheat the oven to 350°F/180°C

Grease and line an 8×8 square baking pan with parchment paper. Leave an overhang of parchment paper to easily lift the bars out once baked and cooled.

Whisk together the dry ingredients in a large bowl – flour, oats, sugar, lemon zest, and baking powder.

Pour the melted butter into the mixing bowl.

Use a fork to combine it into a crumbly dough.

Press two-thirds of the crumb mixture into the bottom of the pan to form the crust.

Par-bake the crust for 15 minutes, and prepare the raspberry filling while baking.

Raspberry filling

In a medium saucepan, combine raspberries, sugar, lemon juice, zest, vanilla, cornstarch, and salt. Stir to combine.

Place the pan over low-medium heat, stirring regularly while the juices of the raspberries start to release.

Let the mixture come to a simmer, then boil for around 2 minutes, stirring continuously until it’s thick and glossy.

Remove it from the heat.

Assembling

Remove the par-baked base from the oven and carefully spread it over the raspberry mixture, using the back of a spoon to ensure it’s even.

Crumble the remaining dough on top of the jam.

Place it back in the oven and bake for 35 minutes until bubbling and golden brown on top.

Remove it from the oven and let it cool to room temperature before removing it from the pan and slicing it into 16.

Store leftover raspberry crumb bars in an airtight container at room temperature for up to 3 days or in the refrigerator for up to 5 days.

Variations

Next time, you could substitute the raspberry with other fresh berries like strawberries, blueberries, or blackberries.
If you don’t want to make your own raspberry filling, you could use store-bought raspberry preserves. Note that this will make the bars much sweeter.

Raspberry Crumble Bars

Yield: 16

Prep Time: 20 minutes

Cook Time: 50 minutes

Total Time: 1 hour 10 minutes

These raspberry crumble bars are delicious, with a homemade tangy raspberry filling, buttery base, and crumble topping. They're so easy to make, with minimal effort and use the same dough for the base and topping!