Mixed Berry Yogurt Muffins: Fresh or Frozen Berries, Greek or Regular

Mixed berry yogurt muffins are a classic quick-bread muffin in which plain yogurt replaces milk, giving a tender, moist crumb and a light tang that suits tart berries. A standard batch of 12 uses about 1 cup (240 g) of yogurt and 1 1/2 cups of berries, and bakes at 400°F (200°C) for 18 to 22 minutes. Fresh or frozen berries both work, as do Greek and regular yogurt, with small adjustments.

Ingredients (makes 12 regular muffins)

Prep: 15 min · Bake: 20 min · Total: 35 min

• 2 cups (250 g) all-purpose flour, plus 1 tablespoon for tossing the berries
• 3/4 cup (150 g) granulated sugar
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 2 large eggs, at room temperature
• 1 cup (240 g) plain yogurt, regular or Greek (see below)
• 1/2 cup (120 ml) neutral oil or melted unsalted butter (113 g)
• 1 teaspoon vanilla extract
• Finely grated zest of 1 lemon (optional)
• 1 1/2 cups (about 210 g) mixed berries: blueberries, raspberries, blackberries or chopped strawberries
• 2 tablespoons coarse sugar for the tops (optional)

Steps

1. Heat the oven to 400°F (200°C). Line a 12-cup muffin pan with paper liners or grease it well.
2. Whisk the flour, sugar, baking powder, baking soda and salt in a large bowl.
3. In a second bowl, whisk the eggs, yogurt, oil or butter, vanilla and lemon zest until smooth.
4. Pour the wet mixture into the dry ingredients and fold with a spatula just until no dry flour shows. The batter should be thick and a little lumpy.
5. Toss the berries with the extra tablespoon of flour and fold them in with a few strokes.
6. Divide the batter among the cups, filling each nearly to the top. Sprinkle with coarse sugar if using.
7. Bake 18 to 22 minutes, until the tops spring back when pressed and a toothpick in the center comes out clean or with a few moist crumbs (berry juice on the pick is fine).
8. Cool in the pan for 5 minutes, then move the muffins to a rack.

Should you use fresh or frozen berries?

Both give good results. Fresh berries hold their shape and bleed less. Frozen berries are convenient year round and are often picked at peak ripeness.

• Use frozen berries straight from the freezer. Thawed berries turn soft and stain the batter purple or gray.
• Add frozen berries at the very end and fold only two or three times.
• Expect to add 3 to 5 minutes to the bake time, since the frozen fruit cools the batter.
• Cut large strawberries or blackberries into pieces about the size of a blueberry so they bake evenly.

The same approach is used in these classic blueberry muffins in cups and grams.

Greek or regular yogurt: which one works better?

Either works, but Greek yogurt is much thicker because some of its liquid has been strained off. Used one for one, it makes a stiffer batter and a slightly denser muffin.

• With regular plain yogurt, use the recipe as written.
• With Greek yogurt, thin it with 2 to 3 tablespoons of milk, or use 3/4 cup Greek yogurt plus 1/4 cup milk.
• Whole-milk yogurt gives the most tender crumb. Low-fat yogurt works but makes a slightly drier muffin.
• Flavored or sweetened yogurt adds sugar; cut the granulated sugar by a few tablespoons if you use it.
• Sour cream can stand in for yogurt in the same amount.

For a version that leans harder on Greek yogurt for protein, see these high-protein Greek yogurt muffins.

What makes yogurt muffins moist?

Yogurt is acidic, and that acid weakens gluten and reacts with baking soda, which together give a soft, tender crumb. Oil also helps: it stays liquid at room temperature, so oil-based muffins feel moister than butter-based ones a day later. Butter gives more flavor. Some bakers use half of each.

The most common cause of dry or tough muffins is overmixing. Stir only until the flour disappears. Overbaking is the second cause, so start checking at 18 minutes.

Why do berries sink, and how do you stop it?

Berries sink when the batter is too thin to hold them. A thick yogurt batter helps, and a light coating of flour gives the berries some grip. You can also spoon a little plain batter into each cup first, then add the berry batter. This guide on why blueberries sink in muffins explains the causes in more detail.

Variations

• Lemon berry: add the lemon zest and brush the warm tops with a glaze of powdered sugar and lemon juice.
• Streusel top: sprinkle a crumb mix of flour, brown sugar and cold butter over the batter before baking.
• Whole wheat: swap up to half the flour for whole wheat flour and expect a denser, nuttier muffin.
• Jumbo muffins: divide the batter among 6 jumbo cups, bake at 375°F (190°C) and start checking at about 25 minutes.

How do you store mixed berry yogurt muffins?

Keep cooled muffins in an airtight container lined with a paper towel at room temperature for up to 2 days. Berries and yogurt make them moist, so they spoil faster than plain muffins in a warm kitchen. Refrigerate for up to 5 days, or freeze in a sealed bag for up to 3 months. Reheat a frozen muffin in the microwave for 20 to 30 seconds or thaw it at room temperature.

Do not taste the raw batter: it contains raw eggs and raw flour, both of which can carry bacteria. FoodSafety.gov has federal guidance on handling raw dough and batter.

Quick answers

Can I make mixed berry yogurt muffins without eggs?

Yes, though the texture changes. A common swap is 1/4 cup (60 g) extra yogurt per egg, which gives a denser, more tender muffin that rises a little less.

Can I use canned or dried fruit instead of berries?

Dried cranberries or blueberries work in the same amount and need no other changes. Canned fruit should be drained very well and patted dry; see these peach muffins with fresh, frozen or canned peaches for that method.

Why did my muffins turn purple or green?

Purple streaks come from thawed or crushed berries releasing juice. A green-gray tint around blueberries happens when their pigment meets an alkaline batter, usually from too much baking soda. Keep to 1/2 teaspoon.

How full should I fill the muffin cups?

Fill them nearly to the top for domed muffins. Thick yogurt batter does not spill over the way a thin batter can.