Raspberry Oat Bars (Easy Vegan Snack)
Definition: bar (noun): a baked mixture cut into portable portions.
vegan (adjective): made without ingredients derived from animals.
These raspberry oat bars are a practical snack for packed lunches, afternoon breaks, picnics, and simple desserts. They use one oat mixture for both the firm base and the crumble topping, which reduces preparation and washing-up.
The raspberry layer is made with fresh or frozen fruit, lemon juice, and a small amount of cornflour to help it set. The finished bars are crisp at the edges, tender in the centre, and moderately sweet. They are vegan as written and can also be made gluten-free by using certified gluten-free oats and gluten-free oat flour.
Overview
The recipe is designed for a 20 cm square tin and makes nine substantial bars or 12 smaller portions. The base is partially baked before the raspberry filling is added. This step improves the structure and prevents the fruit from making the bottom layer excessively soft.
Use old-fashioned rolled oats rather than quick oats. Rolled oats provide a more defined texture and remain crisp after baking.
Recipe
Raspberry Oat Bars
Yield: 9 bars
Prep time: 15 minutes
Cook time: 40 minutes
Cooling time: 1 hour
Total active time: 55 minutes
Category: Snack or dessert
Diet: Vegan
Ingredients
Oat base and crumble
- 150 g rolled oats
- 120 g oat flour
- 75 g light brown sugar or coconut sugar
- 1 teaspoon baking powder
- ¼ teaspoon fine salt
- 100 g melted coconut oil or vegan block butter
- 1 teaspoon finely grated lemon zest
- 2 tablespoons unsweetened plant milk, only if needed
Raspberry filling
- 300 g fresh raspberries, or frozen raspberries thawed and drained
- 50 g raspberry jam or fruit spread
- 2 tablespoons light brown sugar
- 1 tablespoon lemon juice
- 1 tablespoon cornflour
- 1 teaspoon vanilla extract
Method
Prepare the tin. Preheat the oven to 180°C, or 160°C fan. Line a 20 cm square baking tin with baking parchment, leaving an overhang on two sides. The overhang will allow the cooled slab to be lifted out without disturbing the edges.
Combine the dry ingredients. Add the rolled oats, oat flour, sugar, baking powder, salt, and lemon zest to a large bowl. Stir until evenly distributed.
Add the fat. Pour in the melted coconut oil or add the melted vegan butter. Mix until the oats are coated and the mixture holds together when pressed. If it remains very dry, add the plant milk one tablespoon at a time. Do not make the mixture wet.
Form the base. Set aside approximately one-third of the oat mixture for the topping. Tip the remaining mixture into the prepared tin. Press it firmly and evenly across the base. Compacting the mixture is necessary for clean slices.
Part-bake. Bake the base for 12–15 minutes, until lightly golden at the edges and firm enough to support the filling.
Prepare the raspberry layer. While the base is baking, place the raspberries, raspberry jam, sugar, lemon juice, cornflour, and vanilla in a bowl. Stir gently. Crush some of the raspberries with the back of a spoon, but leave a portion whole for texture.
Add the filling. Remove the tin from the oven. Spread the raspberry mixture over the warm base, taking it close to the edges without pressing down.
Add the crumble. Scatter the reserved oat mixture over the raspberry layer. Leave a few small areas of fruit visible. This allows steam to escape and provides a more even balance between fruit and topping.
Bake again. Return the tin to the oven and bake for 25–28 minutes. The topping should be golden and the raspberry mixture should be visibly bubbling at the edges.
Cool completely. Place the tin on a wire rack and leave to cool for at least one hour. For the cleanest slices, refrigerate the bars for 30–60 minutes after cooling.
Slice and serve. Use the parchment overhang to lift the slab from the tin. Cut into nine bars with a sharp knife. Wipe the knife between cuts if a clean appearance is required.
Tips
- Drain frozen raspberries. Excess water can make the filling loose. Thaw the berries in a sieve and discard the liquid before using.
- Press the base firmly. A loose base is more likely to crumble when lifted.
- Do not cut the bars while hot. The fruit layer continues to set as it cools. Slicing immediately may produce soft, uneven bars.
- Use a parchment sling. Leave two opposite sides of parchment extending above the tin. This is more reliable than trying to remove the bars directly from the tin.
- Check your vegan ingredients. Some sugars, jams, and baking spreads may be processed using animal-derived ingredients depending on the manufacturer. Check the product label if strict vegan compliance is required.
- Use certified gluten-free oats where necessary. Oats can be subject to cross-contamination during processing. Ordinary oat flour is not automatically gluten-free.
This simple base-and-fruit technique is also used in other vegan crumble bar formats, including versions made with vegan butter and a more substantial jam layer. See the methods described by The Pretty Bee and Rainbow Plant Life for comparison. The recipe above uses a separate lemon-raspberry filling and coconut oil option.
Variations
- Mixed berry bars: Replace up to half of the raspberries with blackberries or blueberries. Cut larger berries in half.
- Orange and raspberry: Replace the lemon zest with finely grated orange zest and use orange juice in the filling.
- Almond crumble: Replace 30 g of the oat flour with ground almonds. Do not use this variation for anyone with a tree-nut allergy.
- Lower-sugar bars: Use unsweetened raspberry fruit spread and reduce the sugar in the filling to one tablespoon. The result will be more tart.
- Chocolate version: Add 50 g of dairy-free dark chocolate chips to the crumble mixture.
- Gluten-free version: Use certified gluten-free rolled oats, gluten-free oat flour, and a jam labelled gluten-free.
Storage
Store cooled bars in an airtight container at room temperature for up to two days. For longer storage, refrigerate for up to five days. Place parchment between layers to prevent sticking.
The bars can be frozen for up to three months. Wrap them individually or separate layers with parchment. Defrost in the refrigerator overnight, then bring to room temperature before serving. The topping may soften slightly after thawing.
FAQ
Can I use frozen raspberries?
Yes. Thaw them first and drain away excess liquid. Frozen berries can release more water than fresh berries, so this step is required for a firm filling.
Are raspberry oat bars healthy?
They contain oats and raspberries, but they also contain sugar and coconut oil or vegan butter. They should be treated as a snack or dessert rather than a medical or nutritional product. Portion size and overall dietary context remain relevant.
Why did my bars fall apart?
The base may not have been pressed firmly enough, the bars may have been cut before cooling, or the mixture may have contained insufficient binding fat. Measure the coconut oil or vegan butter accurately and allow the bake to cool fully before slicing.
Can I make these without coconut oil?
Yes. Use an equal weight of melted vegan block butter. A spreadable vegan margarine with a high water content may produce a softer base, so block-style vegan butter is preferable.
Can I use quick oats?
Quick oats can be used in an emergency, but the texture will be finer and less defined. Old-fashioned rolled oats provide the most reliable result.
Can I make the bars nut-free?
Yes. The base recipe contains no nuts. Check the labels on the oats, jam, vegan butter, and chocolate if cross-contamination is a concern.
How do I make cleaner cuts?
Cool the bars completely, then refrigerate them before slicing. Use a sharp straight-edged knife and clean the blade after each cut.
Serve
Serve the bars at room temperature with tea, coffee, or a glass of plant milk. They can also be served as a plated dessert with dairy-free vanilla ice cream or unsweetened coconut yoghurt.
RECIPE STATUS: VEGAN AS WRITTEN.
ALLERGEN STATUS: CONTAINS OATS. CHECK PACKAGING FOR GLUTEN AND CROSS-CONTAMINATION INFORMATION.
ACTION: COOL COMPLETELY BEFORE PORTIONING.
