Soft cake, sweet raspberry filling, and a buttery oat topping in every bite
These Raspberry Oat Crumble Cake Squares are the perfect balance of tender cake, fruity raspberry flavour, and a golden oat topping. Made with Fennec Frozen Whole Raspberries, this easy dessert delivers the taste of fresh-picked berries year-round. Perfect for lunchboxes, coffee breaks, family gatherings, or a simple homemade treat.
Ready in: under 1 hour (15 minutes prep).
Servings: 12 squares
Ingredients (Serves 12 squares)
Raspberry Filling
- 3 cups Fennec Frozen Whole Raspberries
- ⅓ cup sugar
- 2 tbsp lemon juice
- 2 tbsp cornstarch
- 1 tsp vanilla extract
Cake Layer
- 1 ½ cups all-purpose flour
- 1 ½ tsp baking powder
- ¼ tsp salt
- ½ cup unsalted butter, softened
- ¾ cup sugar
- 2 large eggs
- 1 tsp vanilla extract
- ½ cup milk
Oat Crumble Topping
- 1 cup rolled oats
- ¾ cup all-purpose flour
- ½ cup brown sugar
- ½ tsp cinnamon
- ½ cup cold butter, cubed
Instructions
1. Prepare the raspberry filling
In a saucepan over medium heat, combine Fennec Frozen Whole Raspberries, sugar, and lemon juice. Cook for 5–7 minutes until the berries soften and release their juices. Stir in cornstarch and cook for another 1–2 minutes until thickened. Remove from heat and mix in vanilla. Allow to cool slightly.
2. Make the cake batter
Preheat oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper.
In a bowl, combine flour, baking powder, and salt. In a separate bowl, cream together butter and sugar until light and fluffy. Add eggs one at a time, then add vanilla. Gradually mix in the dry ingredients, alternating with milk, until a smooth batter forms.
3. Assemble the layers
Spread the cake batter evenly into the prepared pan. Spoon the raspberry filling over the batter and gently spread it into an even layer.
4. Add the oat topping
Mix oats, flour, brown sugar, and cinnamon. Cut in the cold butter until the mixture becomes crumbly. Sprinkle evenly over the raspberry layer.
5. Bake
Bake for 45–50 minutes, until the crumble topping is golden and the cake is fully set. Allow to cool before cutting into squares.
Serving Suggestions
- Serve warm with a scoop of vanilla ice cream for a comforting dessert.
- Dust with powdered sugar for a bakery-style finish.
- Enjoy with coffee or tea as an afternoon snack.
Chef's Tips
- Using Fennec Frozen Whole Raspberries means you can enjoy consistent berry flavour and quality in every season.
- For extra texture, add chopped almonds or coconut flakes to the oat topping.
- Let the squares cool completely before slicing for cleaner layers.