Ingredients
Dry Ingredients
- 3 cups all-purpose flour
- 2 1/2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1 teaspoon fine sea salt
- 1 1/2 cups granulated sugar
Wet Ingredients
- 1 1/4 cups buttermilk (room temperature)
- 1/2 cup unsalted European butter, melted (such as Kerrygold)
- 2 large whole eggs (room temperature)
- 1/3 cup sour cream (room temperature)
- 1/3 cup vegetable oil
- 1 tablespoon vanilla bean paste
Add-ins and Topping
- 1 2/3 cups frozen wild Maine blueberries
- 1/8 cup granulated sugar (for topping)
- Zest of 1/2 lemon (for topping)
Instructions
- Prepare Oven and Muffin Pan: Preheat the oven to 425°F (220°C). Line a 12-cup muffin pan with 6 liners for the first batch to ensure bakery-style domed muffins. Note: muffins are baked in two batches for best dome formation.
- Mix Dry Ingredients: Whisk together the all-purpose flour, baking powder, baking soda, and fine sea salt in a large bowl. Set aside.
- Combine Wet Ingredients: In another bowl, whisk together the buttermilk, granulated sugar, melted butter, eggs, sour cream, vegetable oil, and vanilla bean paste until smooth and combined.
- Combine Wet and Dry Mixtures: Pour the wet mixture into the bowl with dry ingredients and whisk until ingredients are just combined; avoid overmixing. Gently fold in the frozen wild Maine blueberries to distribute evenly without breaking them up.
- Fill Muffin Liners: Using a scoop, fill each muffin liner generously, overfilling so the batter sits higher than the liner edge to encourage tall domes.
- Prepare Topping: Rub lemon zest into the 1/8 cup granulated sugar until fragrant. Evenly sprinkle this lemon-sugar mixture on top of each muffin batter-filled liner.
- Bake Muffins: Bake in preheated oven at 425°F (220°C) for 10 minutes. Without opening the oven door, reduce the temperature to 350°F (180°C) and continue baking for an additional 10-15 minutes, rotating the pan halfway through. Muffins are done when tops are golden brown, no longer sticky, and slightly soft to touch for moistness.
- Cool the Muffins: Let the muffin pan rest on a wire rack for no more than 5 minutes before carefully removing muffins to cool completely on the wire rack.
- Bake Second Batch: Clean the muffin pan, re-line with remaining muffin liners, and preheat the oven again to 425°F (220°C). Repeat the baking process for the remaining batter to achieve consistent results.
Notes
- Use room temperature ingredients (eggs, buttermilk, sour cream) for best texture and batter incorporation.
- Measure flour correctly by spooning into measuring cups and leveling with a knife to avoid dense muffins.
- Using frozen blueberries helps prevent bleeding of juices into the batter, maintaining a beautiful color and texture.
- Baking in two batches at the higher initial temperature allows muffins to develop tall, bakery-style domed tops.
- The lemon zest mixed with sugar on top adds both texture and a bright citrus note balancing the sweetness.
- Do not overmix batter; some lumps are fine to maintain lightness.
- Prep Time: 10 minutes
- Cook Time: 20-25 minutes per batch
- Category: Baking
- Method: Baking
- Cuisine: American