These Strawberry Blueberry Muffins with Lemon & Oat Crumb Topping are soft, fluffy, and packed with fresh berries. This easy small-batch recipe makes six bakery-style muffins topped with a buttery oat crumble and bright lemon flavor.
Strawberry Blueberry Muffins with Lemon & Oat Crumb Topping
Some recipes feel like they belong to a particular season, and these muffins are one of them.
Every year when strawberries and blueberries start showing up together at the farmers market, I find myself looking for simple ways to use them beyond the usual fruit salad. These Strawberry Blueberry Muffins with Lemon & Oat Crumb Topping just might be one of my favorites. They're soft and tender, filled with juicy berries, and finished with a lemon buttery oat crumble that gives each muffin just the right amount of texture.
What I love most about this recipe is how approachable it is. The batter comes together quickly with pantry staples, there's no mixer required, and the small-batch yield means you can have fresh muffins on the table without committing to a dozen. It's the kind of recipe that's perfect for a slow weekend morning, an afternoon coffee break, or those moments when you want something homemade without turning it into a project.
The lemon zest is the real secret here—it brightens everything and makes the berries taste even more vibrant without overpowering them. Even with a smaller amount of fruit, the flavor really pops.
If you're looking for a simple seasonal bake that celebrates summer produce without a lot of fuss, these muffins are exactly that.
Enjoy!
-- Ingredients
- Eggs
- Milk
- Canola Oil
- All-Purpose Flour
- Granulated Sugar Baking Powder
- Salt
- Vanilla Extract
- Lemon Zest - The secret ingredient that brightens the entire muffin without overpowering the fruit.
- Blueberries - Burst as they bake, creating little pockets of sweetness.
- Strawberries - Add juicy flavor and beautiful color throughout the muffins.
Oat Crumb Topping
- Rolled Oats
- Brown Sugar
- Flour
- Melted Butter
- Pinch of Salt
-- Equipment
- Standard 6-cup muffin pan
- Muffin liners
- 2 mixing bowls
- Measuring cups and spoons
- Whisk
- Rubber spatula
- Microplane or zester
- Cooling rack
My Go-To's
- Standard Muffin Pan - A sturdy muffin pan helps the muffins bake evenly and develop nicely domed tops. When using a 12 well muffin tin place batter in every other well so they rise nice and high.
- Microplane Zester - Makes quick work of lemon zest and produces fine, aromatic citrus without bitterness.
- Silicone Spatula - Perfect for gently folding berries into the batter without crushing them.
-- Let's Make It Together
Start by mixing together the oat crumb topping and setting it aside while you prepare the muffin batter.
Whisk the wet ingredients in one bowl and the dry ingredients in another, then gently combine the two. Fold in the strawberries and blueberries, being careful not to overmix.
Divide the batter among six muffin cups and generously sprinkle the oat topping over each one.
The muffins start at a higher oven temperature to encourage tall bakery-style tops, then finish baking at a lower temperature until golden and tender.
After a few minutes of cooling, they're ready to enjoy—preferably while still slightly warm, with bursts of juicy berries and a buttery oat crumble in every bite.
-- Perfecting the Baking Process
The key to tender muffins is avoiding overmixing. Stir the batter only until the flour disappears. A few lumps are perfectly fine and actually help create a lighter, softer texture. Overmixing develops gluten, which can make muffins dense instead of fluffy.
-- Add Your Touch
One of my favorite things about muffin recipes is how easy they are to customize. This base recipe works beautifully with different fruits, spices, and toppings depending on what's in season or what you have on hand.
- Swap raspberries for blueberries
- Add chopped pecans or walnuts to the crumb topping
- Stir in white chocolate chips
- Add extra lemon zest for a brighter citrus flavor
- Sprinkle coarse sugar over the crumb topping before baking
-- Set the Mood
Part of the joy of cooking is creating a little moment around the meal. Here are a few simple ways to set the mood when serving this dish.
These Strawberry Blueberry Muffins with Lemon & Oat Crumb Topping are such an easy and delightful treat to make. They're simple enough for an ordinary morning but pretty enough to serve for brunch, weekend guests, or a summer gathering.
If you're looking for more muffin or scone recipes, you might also enjoy these:
- Blueberry Almond Honey Muffins
- Cherry Garcia Scones
- Blackberry Swirl Muffins with Crumb Topping
- Bakery Style Strawberry Almond Scones
Each recipe celebrates fresh ingredients and simple baking in its own way.
Whether you're baking these for breakfast, brunch, or an afternoon treat, I hope they bring a little extra sunshine to your kitchen.
-- Before You Start
Can I use frozen berries?
Yes. Use them straight from the freezer and do not thaw first. Thawed berries can release excess moisture into the batter.
Absolutely. These muffins stay moist for 2 to 3 days stored in an airtight container at room temperature.
Yes. Simply double all ingredients and bake in a standard 12-cup muffin pan.
The initial burst of heat helps create taller, bakery-style muffin tops before the temperature is lowered to finish baking evenly.
Definitely. Raspberries, blackberries, peaches, or a combination of seasonal berries work beautifully.
Store in an airtight container at room temperature for up to 3 days, or refrigerate for up to 5 days.


























