The Best Blueberry Muffins (Secret Ingredient!!)

The Best Blueberry Muffins in a pile on a plate food photography

These are seriously the best blueberry muffins I have ever made. I learned this recipe from my mother in law who uses an unconventional ingredient to make these muffins so rich and delicious. That secret ingredient? Sour cream!

Actually the true secret ingredient is smetana, which is a type of high milkfat Eastern European sour cream. But you can use regular sour cream if that’s all you can find. If you don’t live in Central/Eastern Europe then use general sour cream, creme fraiche, or strained yoghurt. All are acceptable substitutions.

How To Make The Best Blueberry Muffins

The Best Blueberry Muffins on a plate with one muffin showing cross section

These blueberry muffins have two tricks. One is to use the aforementioned ingredient. The second is the preparation method. I highly suggest using a stand or a hand mixer in this recipe as it really helps creating light and fluffy muffins – perfect for a breakfast side! This is my go to muffin base to use with a variety of fruits like raspberry or apple-cinnamon!

Sour Cream Blueberry Muffins Ingredients

sour cream blueberry muffins ingredients on a table with a stand mixer

I’m going to list the ingredients in grams for the most part because like most baking recipes you should be quite specific. However I will also give estimations in case you do not have a kitchen scale.

240 grams Flour – this is about 2 cups of loosely packed flour. I suggest using AP flour as it works well here, but you can also use cake or pastry flour if you want.

200 grams Sugar – this is about 1 cup of regular white sugar.

100 grams Egg – two large eggs, room temperature. If your eggs are VERY small then you might have to use half of another one. In this case just beat a few eggs together and measure out 100 grams. If you are between 96 and 104 grams then you are fine.

5 grams Baking Powder – about 1 tsp

2 grams Baking Soda – about 1/3 of a tsp

120 ml Oil – I suggest using a neutral oil like vegetable, soybean, or sunflower oil. A stronger oil like Olive will impart a lot of flavor into the final muffin

3 grams Salt – half a teaspoon

250 grams Sour Cream – about 1 cup. If you can find actual smetana then definitely use it. If not then use the highest milkfat sour cream you can get your hands on.

A handful of Blueberries – I would say about a cup, but if you go over that amount by volume it really isn’t a problem. You’ll just have a few extra berries in your muffins!

Making The Batter

sugar and eggs in a bowl with a whisk

In the bowl of a stand mixer with the whisk attachment add the eggs and sugar and salt and beat well until you have a pale yellow color. You can also use a hand mixer.

whipped eggs and sugar in a bowl of a stand mixer

I find whisking on high using a stand mixer takes about 5 minutes to achieve the consistency I want. This is pumping a lot of air into the batter which makes the best blueberry muffins in the end!

liquid muffin batter in a stand mixer with whisk attachment

Next add the sour cream / smetana and the oil. Whisk this in on low speed just until combined, about 30 seconds.

muffin dry ingredients in a yellow bowl on a table

In another bowl sift together the flour, baking powder, and baking soda. Add the dry ingredients a tablespoon at a time to the mixer. Keep it on the lowest setting and do not overmix; stop the machine as soon as the flour is incorporated. Reserve one tablespoon of flour.

flour dusted fresh blueberries in a bowl about to be added to the muffin batter

Use the reserved tablespoon of flour to toss the blueberries in. This will prevent them from sinking straight to the bottom of the muffin as they bake in the oven.

The Best Blueberry Muffins batter in a metal mixing bowl

Fold the blueberries into the sour cream muffin batter with a rubber spatula. You want to do this just enough to get them all coated in there, but do not overmix.

blueberry muffins in paper cups in a muffin tin before baking

Fill the muffin cups 3/4 of the way with the batter. If you aren’t using paper cups then make sure to use a little bit of oil to crease the pan before adding the batter. I do find that the cups help with more even baking.

The Best Blueberry Muffins in a pile on a plate food photography

Bake in an oven at 175°C or 350°F on fan forced convection for 21 minutes. Remove and let cool for 10 minutes before eating.

Tips & Tricks

The trick to light and fluffy blueberry muffins is to NOT overmix. The more you mix, the more gluten gets built up which will make them far too chewy.

Using fresh blueberries is highly recommended. If you use frozen berries they will dye your muffins green. It doesn’t change the taste but some may find it less appealing.

If you do not have a fan forced convection oven then you should bake the muffins at 190°C for the same length of time. However everyone’s oven is different so be sure to watch them in the last 5 minutes to see if they need to be pulled out.

the best sour cream blueberry muffins on a plate

The Best Blueberry Muffins

This is seriously the best blueberry muffin recipe I have ever tried. I got it from my mother in law who uses smetana as a key ingredient to impart a luxurious richness to the muffins.
5 from 1 vote
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Course: Breakfast, Dessert, Side Dish
Cuisine: American, European
Keyword: Baking, Blueberry, Muffins, Vegetarian
Prep Time: 15 minutes
Cook Time: 21 minutes
Total Time: 36 minutes
Servings: 12 muffins
Calories: 420kcal
Cost: $5

Equipment

  • 1 stand mixer or electric hand mixer
  • 1 12 Count Muffin Tin
  • 12 Muffin Paper Cups optional
  • 1 Rubber Spatula
  • 1 Kitchen Scale optional, but recommended
  • 1 Oven

Ingredients

  • 240 grams Flour this is about 2 cups of loosely packed flour. I suggest using AP flour as it works well here but you can also use cake or pastry flour if you want.
  • 200 grams Sugar this is about 1 cup of regular white sugar.
  • 100 grams Egg two large eggs room temperature. If your eggs are VERY small then you might have to use half of another one. In this case just beat a few eggs together and measure out 100 grams. If you are between 96 and 104 grams then you are fine.
  • 5 grams Baking Powder about 1 tsp
  • 2 grams Baking Soda about 1/3 of a tsp
  • 120 ml Oil I suggest using a neutral oil like vegetable soybean, or sunflower oil. A stronger oil like Olive will impart a lot of flavor into the final muffin
  • 3 grams Salt half a teaspoon
  • 250 grams Sour Cream about 1 cup. If you can find actual smetana then definitely use it. If not then use the highest milkfat sour cream you can get your hands on.
  • Blueberries I would say about a cup but if you go over that amount by volume it really isn't a problem. You'll just have a few extra berries in your muffins!

Instructions

  • Preheat your oven to 175C or 350F on the convection fan forced setting. (If your oven doesn't have convection fan forced then bake at 190C for the same amount of time.
  • In the bowl of a stand mixer with the whisk attachment whip together the eggs, sugar, and salt until a foamy pale yellow, about 5 minutes.
  • Lower the setting to the slowest speed and slowly incorporate the oil and sour cream.
  • In a bowl sift together the dry ingredients. Add them to the batter a tablespoon at a time. Turn off mixer the instant all the flour mix is incorporated so as not to overmix. Reserve one tablespoon of flour powder.
  • Toss the fresh blueberries in the flour mix. Gently fold them into the batter.
  • Line your muffin tin with the paper liners. Scoop batter into the liners so they fill about 3/4ths the way up.
  • Bake for 21 minutes. Remove and let muffins rest for 10 minutes before eating. Enjoy!

Nutrition

Calories: 420kcal
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The Best Blueberry Muffins

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