Go Back
Single jumbo lemon poppy seed muffin with streusel topping and lemon glaze on a wire rack, with more muffins in tulip liners visible in the background.

Bakery Style Lemon Poppy Seed Muffins

These jumbo lemon poppy seed muffins are soft, bakery-style, and topped with a buttery lemon streusel and a sparkling lemon glaze. Made completely from scratch with simple ingredients.
Prep Time 25 minutes
Cook Time 26 minutes
Cool Time 20 minutes
Total Time 1 hour 11 minutes
Serving Size 6 servings

Ingredients

Lemon Streusel Topping

  • 4 tbsp cold unsalted butter cut into small cubes 57g
  • 4 tbsp all-purpose flour 30g
  • 4 tbsp turbinado sugar 50g
  • 1 tsp fresh lemon zest 1g

Muffin Batter

  • 2¼ cups all-purpose flour spoon and level 270g
  • ⅔ cup granulated sugar 133g
  • 1 tsp baking powder 4g
  • ¼ tsp baking soda 1.5g
  • ¼ tsp fine sea salt 1.5g
  • 2 tbsp poppy seeds 18g
  • 2 large eggs 100g
  • ½ cup + 1 tbsp full-fat sour cream 135g
  • 6 tbsp whole milk 90g
  • 4½ tbsp neutral oil avocado or vegetable 45g
  • 2 tbsp fresh lemon zest about 2 large lemons 6g
  • 3 tbsp fresh lemon juice 45g
  • ¾ tsp pure vanilla extract 3.5g

Lemon Glaze

  • 1 cup powdered sugar 120g
  • 2 tbsp fresh lemon juice 30g
  • Fresh lemon zest or poppy seeds for garnish

Instructions

  • Make the streusel first. Combine the flour, turbinado sugar, and lemon zest in a small bowl. Add the cold cubed butter and work with your fingertips until the mixture looks like coarse, shaggy crumbs with pea-sized clusters. Refrigerate while you make the batter.
  • Preheat oven to 400°F. Verify with an oven thermometer. If using a dark non-stick pan, use 375°F. Line a 6-cup jumbo muffin tin with tulip parchment liners or grease well.
  • Zest lemons directly into a bowl with the granulated sugar. Rub zest into sugar with fingertips for 1–2 minutes until pale yellow and fragrant.
  • In a large bowl, whisk together flour, lemon sugar, baking powder, baking soda, salt, and poppy seeds. Make a well in the center.
  • In a separate bowl, whisk together eggs, sour cream, milk, oil, lemon zest, lemon juice, and vanilla until smooth.
  • Pour wet ingredients into the well of the dry ingredients. Fold with a rubber spatula just until no dry streaks remain. Do not overmix — lumpy batter is correct. Let the batter rest for 5 minutes.
  • Divide batter evenly between the 6 cups, filling each exactly ¾ full. Remove streusel from the fridge and scatter generously over each muffin top, pressing very lightly to adhere.
  • Bake at 400°F for 7 minutes. Do not open the oven door.
  • Without opening the oven, reduce temperature to 350°F and bake for 17–19 more minutes, until tops are golden, streusel is golden brown, and a toothpick comes out clean.
  • Cool in pan for 5 minutes, then transfer to a wire rack for at least 20 minutes before glazing.
  • Whisk powdered sugar and lemon juice until smooth and pourable. Drizzle over each muffin dome, letting it cascade through the streusel and down the sides. Top immediately with fresh lemon zest or a pinch of poppy seeds. Allow glaze to set for 10 minutes.

Notes

  • Always use an oven thermometer — oven temperature accuracy is critical for a clean dome.
  • Fill cups exactly ¾ full to prevent blowouts.
  • Use fresh baking powder (less than 6 months old).
  • Keep the streusel refrigerated until the moment it goes on the muffins — cold streusel = better clusters.
  • Batter can be made the night before and refrigerated. Bake cold from the fridge.
  • Store in an airtight container at room temperature for up to 3 days.
  • Freeze unglazed for up to 2 months.