Raspberry Lemon Poppyseed Muffins

These raspberry lemon poppyseed muffins are light, fresh, and exactly the kind of bake that feels right in the middle of winter — bright, citrusy, and just cheerful enough to convince you spring is coming (even if it’s very much not). The lemon keeps things vibrant, the raspberries add sweet-tart bursts, and yes — you can absolutely use frozen raspberries, which means this recipe works all year long. No waiting for berry season required.

What I love most about these muffins is the contrast in texture. The tops have a delicate crunch (as you can see from its golden brown exterior), thanks to a higher starting oven temperature, before giving way to a soft, springy interior studded with juicy raspberries. The poppy seeds add just enough texture so every bite isn’t one-note soft — subtle, but important.

Overhead view of raspberry lemon poppyseed muffins baked in tulip-style parchment liners, golden domed tops studded with fresh raspberries, arranged in a muffin pan with a bowl of raspberries nearby.

Starting the bake at 425°F for the first 5 minutes helps create those tall, bakery-style domed tops and encourages beautiful browning, then finishing at a lower temperature ensures the muffins stay tender inside. The result? A muffin that looks impressive, tastes bright, and feels just as appropriate for breakfast as it does for an afternoon snack.

Close-up of a raspberry lemon poppyseed muffin cut in half, showing a soft, moist crumb with poppy seeds and a juicy raspberry center, styled with fresh raspberries on parchment paper.

In short: this is a dependable, anytime muffin — fresh, balanced, and very hard to stop at one!

Close-up of bakery-style raspberry lemon poppyseed muffins baked in tulip parchment liners, featuring golden domed tops with fresh raspberries and poppy seeds, styled beside a bowl of fresh raspberries.

Yield
12 muffins

Prep Time
15 mins

Bake Time
25 mins

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Ingredients

150g (½ cup) granulated white sugar
2g (2 teaspoons) lemon zest, about 1 lemon
250g (2 cups) all-purpose flour/ plain flour **If using cups, spoon the flour into the measuring cup and level it off. Scooping directly from the bag can pack in too much flour and lead to dense muffins.
20g (2 tablespoons) poppy seeds
7g (1½ teaspoons) baking powder
10g (2 teaspoons) baking soda
¼ teaspoon fine sea salt
100g (about 2 large eggs) eggs – weight is without shell at room temperature
173g (¾ cup) sour cream, at room temperature
85g (¼ cup + 2 tablespoons) unsalted butter, melted and slightly cooled
60g (¼ cup) fresh lemon juice
170g (1¼ cup) fresh or unthawed frozen raspberries

Instructions

Step 1.

Preheat oven to 425℉ (220℃). Line 12 muffin cups with paper liners.

Step 2.

In a large bowl, whisk together sugar and lemon zest. This helps bring out the lemon flavor. Then add the flour, poppy seeds, baking powder, baking soda, and sea salt. Stir until combined.

150g (½ cup) granulated white sugar
2g (2 teaspoons) lemon zest
250g (2 cups) all-purpose flour
20g (2 tablespoons) poppy seeds
7g (1½ teaspoons) baking powder
10g (2 teaspoons) baking soda
¼ teaspoon fine sea salt

Step 3.

In a medium bowl, whisk together eggs, sour cream, melted butter, and lemon juice until combined and smooth.

100g (about 2 large eggs) eggs – weight is without shell
173g (¾ cup) sour cream
85g (¼ cup + 2 tablespoons) unsalted butter, melted and slightly cooled
60g (¼ cup) fresh lemon juice

Step 4.

Pour the egg mixture into the flour mixture and gently stir with a rubber spatula just until combined. The batter will be thick, and at first it may seem like there isn’t enough liquid—this is normal.

Continue folding gently until the flour is evenly moistened, being careful not to overmix. The finished batter should look thick and slightly lumpy, with no dry pockets of flour.

Gently fold in the raspberries, taking care not to mash them.

170g (1¼ cup) fresh or unthawed frozen raspberries

Step 5.

Divide batter amount prepared 12 muffin cups – I did 80g of muffin per muffin cup.

Step 6.

Bake at 425°F (218°C) for 5 minutes, then—without opening the oven—reduce the temperature to 350°F (177°C) and continue baking for 19-20 minutes, or until the tops are lightly golden and the centers are set.

Test for doneness by inserting a toothpick into the center; it should come out clean. For accuracy, use a food thermometer—muffins are done when the internal temperature reaches 200–205°F. No guesswork, no underbaked centers, ever.

Baker’s Notes

Frozen raspberries work beautifully. Use them straight from the freezer—do not thaw. Gently fold them into the batter at the very end to prevent bleeding and streaky muffins.

Don’t overmix the batter. Once the dry ingredients are added, mix just until combined. Overmixing develops gluten and can result in tough, rubbery muffins instead of a soft, springy crumb.

That high starting temperature matters. Baking at 425°F for the first 5 minutes helps set the structure and encourages a taller rise and lightly crisp exterior. Don’t skip this step—and don’t open the oven during the temperature change.

Check doneness properly. A toothpick should come out clean, but for best accuracy, use a thermometer. Muffins are fully baked when the internal temperature reaches 200–205°F. You can learn more about never underbaking again here.

Make ahead: Muffins can be baked a day in advance. Let them cool completely, then store covered at room temperature. Storing: Keep muffins in an airtight container at room temperature for up to 2 days, or refrigerate for up to 5 days. Freezing: These muffins freeze well. Wrap individually and freeze for up to 2 months. Thaw at room temperature or warm gently before serving.

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