These easy cake mix blueberry muffins turn a boxed cake mix into soft, fluffy muffins packed with juicy blueberries. The batter comes together quickly with a few simple ingredients, making these muffins a convenient choice for breakfast, brunch, or an afternoon snack.
Why You’ll Love This Recipe
- Quick preparation: The cake mix eliminates most of the measuring and dry-ingredient mixing.
- Soft and fluffy: A simple batter produces tender muffins with a light crumb.
- Berry-packed: Fresh blueberries add juicy pockets of fruit throughout each muffin.
- Simple ingredients: Most of what you need is easy to find at a regular grocery store.
- Breakfast-friendly: These muffins work well for breakfast, brunch, snacks, or lunchboxes.
- Easy to customize: Fresh or frozen blueberries can be used with a few simple adjustments.
Ingredients
You only need a handful of ingredients to make these easy cake mix blueberry muffins.
- 1 box (15.25 ounces) yellow cake mix
- 2 large eggs
- 1/2 cup whole milk
- 1/2 cup vegetable oil
- 1 teaspoon vanilla extract
- 1 1/2 cups fresh blueberries
- 1 tablespoon all-purpose flour, for coating the blueberries
Ingredient Notes
Yellow cake mix: A standard 15.25-ounce box works well as the base and provides the dry ingredients and sweetness.
Blueberries: Fresh blueberries are ideal, but frozen berries can also work. If using frozen berries, don’t thaw them first.
Milk: Whole milk gives the muffins a tender texture, although 2% milk can also be used.
Vegetable oil: Oil helps keep the muffins moist and soft after cooling.
Flour: A small amount of flour helps coat the blueberries so they distribute more evenly through the batter.
How to Bake Easy Cake Mix Blueberry Muffins
1. Prepare the Oven and Muffin Pan
Preheat the oven to 350°F. Line a standard 12-cup muffin pan with paper liners or lightly grease the cups.
Wash and gently dry the blueberries. If they’re particularly wet, pat them dry with a paper towel so excess moisture doesn’t thin the batter.
2. Coat the Blueberries
Place the blueberries in a small bowl and gently toss them with 1 tablespoon of all-purpose flour. The berries should have a very light coating rather than a thick layer of flour.
This helps keep the berries from immediately sinking to the bottom of the muffins.
3. Mix the Muffin Batter
In a large mixing bowl, combine the cake mix, eggs, milk, vegetable oil, and vanilla extract. Stir until the ingredients are just combined and the batter looks smooth.
Don’t overmix. A few small lumps are fine, and stopping once the dry mix disappears helps keep the muffins tender.
4. Fold in the Blueberries
Add the flour-coated blueberries to the batter. Use a rubber spatula to gently fold them in just until they’re distributed throughout.
Avoid vigorous stirring, which can crush the berries and turn the batter purple.
5. Fill the Muffin Cups
Divide the batter evenly among the 12 prepared muffin cups, filling each about three-quarters full.
If a few blueberries remain in the bowl, distribute them over the tops so the finished muffins have visible berries on the surface.
6. Bake Until Golden and Set
Bake at 350°F for 18–22 minutes, or until the muffin tops are lightly golden and a toothpick inserted into the center of a muffin comes out with a few moist crumbs but no wet batter.
Avoid overbaking because the muffins can lose their soft texture as they cool.
7. Cool Before Serving
Let the muffins cool in the pan for about 5 minutes, then transfer them to a wire rack. Allow them to cool for another 10–15 minutes before serving.
Cooling briefly helps the crumb finish setting while keeping the muffins soft.
Recipe Tips
- Don’t overmix the batter: Stir only until the ingredients come together. Excessive mixing can make muffins less tender.
- Dry wet blueberries: Excess water on the berries can add unnecessary moisture to the batter.
- Use a consistent scoop: Dividing the batter evenly helps all the muffins finish baking at roughly the same time.
- Don’t overfill the cups: About three-quarters full gives the muffins room to rise without spilling over the edges.
- Watch the final minutes: Cake mix muffins can go from lightly golden to overbaked quickly, so start checking around 18 minutes.
- Check the center: A toothpick should come out with moist crumbs rather than liquid batter.
Variations and Substitutions
Frozen blueberries: Use them straight from the freezer rather than thawing. Fold them into the batter quickly to reduce bleeding.
Lemon blueberry muffins: Add 1 teaspoon of finely grated lemon zest to the batter for a brighter citrus flavor.
White chocolate blueberry muffins: Fold in about 1/2 cup of white chocolate chips along with the blueberries.
Mixed berry muffins: Replace part of the blueberries with raspberries or blackberries, keeping the total amount of fruit around 1 1/2 cups.
Milk substitution: 2% milk can replace whole milk. The muffins may be slightly less rich but should still remain tender.
What to Serve With Cake Mix Blueberry Muffins
These muffins pair naturally with:
- Scrambled eggs and breakfast sausage
- Greek yogurt and fresh fruit
- A simple fruit salad
- Coffee or tea
- Butter or cream cheese for spreading
Storage and Reheating
Refrigerator
Once completely cooled, place the muffins in an airtight container and refrigerate for up to 5 days. Refrigeration can make the crumb slightly firmer, so bringing them toward room temperature before eating improves their texture.
Freezer
These muffins freeze well. Wrap individual cooled muffins tightly in plastic wrap or freezer-safe packaging, then place them in a freezer bag or airtight container. Freeze for up to 3 months for best quality.
Thaw at room temperature or overnight in the refrigerator.
Reheating
For a soft, warm muffin, microwave one muffin for about 10–15 seconds. Add a few seconds if necessary, but avoid overheating because the muffin can become chewy.
Easy Cake Mix Blueberry Muffins
Soft, fluffy muffins filled with juicy blueberries and made with a simple cake mix batter. These easy muffins are perfect for breakfast, brunch, snacks, or lunchboxes.
Why You’ll Love It
Cake mix eliminates most of the measuring work.
Tender muffins with a light, delicate crumb.
Fresh blueberries add juicy bursts of flavor.
Everything is easy to find at a regular grocery store.
Perfect for breakfast, brunch, snacks, or lunchboxes.
Fresh or frozen blueberries both work well.
Ingredients
- 1 box (15.25 oz) yellow cake mix
- 2 large eggs
- 1/2 cup whole milk
- 1/2 cup vegetable oil
- 1 teaspoon vanilla extract
- 1 1/2 cups fresh blueberries
- 1 tablespoon all-purpose flour
Quick Instructions
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1
Prepare
Preheat the oven to 350°F and line a 12-cup muffin pan.
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2
Coat the Berries
Toss blueberries with flour to help prevent sinking.
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3
Mix the Batter
Combine cake mix, eggs, milk, oil, and vanilla.
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4
Fold in Blueberries
Gently stir in the flour-coated berries.
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5
Fill & Bake
Fill cups three-quarters full and bake for 18–22 minutes.
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6
Cool
Cool briefly in the pan before transferring to a wire rack.
Toss the blueberries with a little flour before adding them to the batter. This helps distribute the berries more evenly throughout the muffins.
Variations
Add lemon zest, white chocolate chips, or replace part of the blueberries with raspberries or blackberries.
Serving Ideas
Serve with coffee, tea, Greek yogurt, fruit salad, butter, or cream cheese.
Storage
Refrigerate for up to 5 days or freeze for up to 3 months. Warm briefly before serving.