Easy Cake Mix Blueberry Muffins

Ingredients

Lemon cake mix (1 box, 15.25 oz): The base of the recipe. Duncan Hines and Betty Crocker both work. Yellow cake mix, white cake mix, or French vanilla all substitute well, lemon just complements blueberries best. One reader used sugar-free cake mix with lemon zest and said it worked perfectly.

Sour cream (1 cup, full fat): Keeps the muffins moist and tender. Full fat plain Greek yogurt is a direct substitute and works just as well.

Butter (¼ cup, melted): Salted or unsalted both work. Make sure it’s melted but not scorching hot or it will cook the eggs when you mix.

Eggs (2 large): Let them come to room temperature for better mixing.

Fresh blueberries (2 cups): Fresh gives the best flavor and texture. If using frozen don’t thaw them first, add them straight from the freezer or they’ll bleed into the batter and turn everything purple.

Sparkling sugar (1½ tsp, optional): Adds crunch and a bakery-style look on top. Regular granulated sugar works too or skip it entirely.

How Do You Make Muffins from Cake Mix?

Step 1: Preheat oven to 375°F. Line a muffin pan with paper liners or spray with baking spray.

Step 2: In a medium bowl whisk together the sour cream, melted butter, and eggs until well combined.

Step 3: Add the lemon cake mix and whisk until no dry spots remain.

Step 4: Gently fold in the blueberries with a spatula until evenly distributed. Don’t overmix or the berries will burst.

Step 5: Scoop the batter into the prepared muffin pan, filling each about ¾ full. Sprinkle sparkling sugar on top if using.

Step 6: Bake 23 to 25 minutes until golden brown on top and a toothpick inserted in the center comes out with just a few moist crumbs.

Step 7: Cool slightly before serving.

How Long Do Blueberry Muffins Keep?

Storage: Store in an airtight container at room temperature for up to 3 days or in the refrigerator for up to 5 days.

Reheating: Great at room temperature. Warm in the microwave for 10 to 15 seconds for a fresh-baked taste.

Freezing: Freeze in a freezer-safe bag for up to 3 months. Thaw at room temperature or warm in the microwave.

What Can I Add to Blueberry Muffins?

A lemon glaze drizzled over cooled muffins adds extra sweetness and citrus flavor. Just mix powdered sugar with lemon juice until pourable. One reader added a teaspoon of lemon extract to the batter and topped with lemon glaze in a loaf pan and said it was fantastic!

A streusel topping made with flour, butter, and brown sugar pressed on before baking adds bakery-style crunch. Chopped pecans or walnuts folded in with the blueberries add texture. Raspberries, blackberries, or a mix of berries can replace some or all of the blueberries.

Sour cream can be swapped for full fat plain Greek yogurt with no change in texture. Any cake mix flavor works in place of lemon, yellow, white, and French vanilla are all good substitutes. Vegetable oil or melted coconut oil can replace the butter at a 1 to 1 ratio.

Questions about these easy cake mix muffins:

Can you make muffins with cake mix? 

Yes. Cake mix makes a great muffin base! It already has flour, sugar, and leavening measured in. You just add eggs, sour cream, and butter for the right texture.

Why are my muffins dry? 

Almost always overbaked. Start checking at 20 minutes. They’re done when a toothpick has just a few moist crumbs — not when it comes out completely clean.

Can I use frozen blueberries?

 Yes. Don’t thaw them first. Add them to the batter frozen to prevent them from bleeding purple throughout the muffins.

Can I use yellow cake mix instead of lemon? 

Yes. Yellow, white, or French vanilla all work. Lemon just adds a citrus flavor that complements blueberries well.

Can I make these in a large muffin tin? 

Yes. Bake at the same temperature but increase the time to about 28 to 30 minutes and check with a toothpick.

Can I make these ahead? 

Yes. Bake and store at room temperature for up to 3 days or freeze for up to 3 months.