Almond Flour Raspberry Crumble Bars

These bars hit the rare sweet spot where 'naturally gluten-free' doesn't mean 'a compromise.' The almond flour base bakes up buttery and tender — closer to shortbread than to anything you'd associate with health food. The raspberry layer sets into a glossy, slightly tart jam without needing a thickener you have to source from a special store.

They keep beautifully for several days, freeze well for longer, and travel without falling apart — which means they earn a permanent spot in the rotation for coffee breaks, school snacks, and quiet weekend afternoons.

Instructions

1. 1

   Heat oven to 350°F. Line an 8×8 inch pan with parchment, leaving overhang on two sides.

2. 2

   Make the raspberry layer first: combine raspberries, maple, and lemon juice in a small saucepan. Bring to a simmer over medium and cook 5–7 minutes, mashing with a wooden spoon, until reduced and jammy. Stir in chia seeds, remove from heat, and set aside (chia thickens as it cools).

3. 3

   In a large bowl, whisk almond flour, oats, salt, and baking soda. Add maple syrup, melted coconut oil, and vanilla; mix until a sandy, clumpy dough forms.

4. 4

   Press two-thirds of the dough firmly into the lined pan in an even layer. Spread the raspberry mixture over the top, leaving a small border.

5. 5

   Crumble the remaining dough over the raspberry layer in clumps — leave gaps so the red shows through.

6. 6

   Bake 28–32 minutes, until the topping is deep golden. Cool completely in the pan (1 hour) before lifting out and slicing — they need this time to set.

Use blanched almond flour, not almond meal

Blanched almond flour is fine, pale, and almost silty — made from skinless almonds. Almond meal includes the skins and is grittier and darker. For tender bars, blanched almond flour is what you want.

Bob's Red Mill Super-Fine and King Arthur both work beautifully. Avoid bulk-bin flour that's been sitting open — almond flour goes rancid quickly.

Chia seeds replace cornstarch beautifully

Chia seeds form a gel when they hit liquid, which sets the raspberry filling without a starch and adds fiber. The seeds are nearly invisible in the finished bar.

Wait at least 5 minutes after stirring in chia before assembling — you'll see the mixture thicken right in front of you.

Pressing the base matters

A loose, crumbly base will fall apart when sliced. Use the flat bottom of a measuring cup to compact the dough firmly into the pan corners. The bars should feel almost too dense — they tenderize as they bake.

Save a third of the dough for the topping; press the rest. Crumbled topping should look like irregular clumps, not a flat layer.

Storage and variations

Room temperature: 2 days in an airtight container. Refrigerated: 1 week. Frozen: 3 months — wrap individually in parchment, then freeze in a bag.

Variations: blueberries (reduce maple to 2 tbsp; they're sweeter), cherries (pit and chop first), or a mix of berries. Add a pinch of cardamom to the crust for a subtle warm spice.

If you love these, try our Salted Tahini Date Cookies — same naturally-sweet philosophy, completely different vibe.

Frequently asked questions

Further reading

• Almond flour benefits — Healthline ↗
• Chia seeds nutrition — USDA ↗