Blueberry Banana Muffins Perfect (Print Version)

# Ingredients:

→ Dry Ingredients

01 - 2 3/4 cups (330g) all-purpose flour
02 - 1 Tablespoon (14g) baking powder
03 - 1/2 teaspoon salt
04 - 1/4 teaspoon ground nutmeg
05 - 1/4 teaspoon ground cinnamon

→ Wet Ingredients

06 - 1 cup (227g) unsalted butter, melted and slightly cooled
07 - 1/2 cup (106g) light brown sugar, packed
08 - 1/2 cup (99g) granulated sugar
09 - 3 large eggs, room temperature
10 - 2 teaspoons pure vanilla extract
11 - 3/4 cup (170g) full-fat sour cream
12 - 1 cup (227g) mashed ripe banana

→ Add-ins

13 - 1 pint (292g) fresh blueberries
14 - 1/2 cup toasted walnuts, finely chopped
15 - 2 Tablespoons sparkling sugar, optional

# Instructions:

01 - Preheat the oven to 400°F (200°C). Line a 12-cup muffin tin with paper liners and set it aside.
02 - In a large bowl, sift together the flour, baking powder, nutmeg, cinnamon, and salt; set aside.
03 - In a separate large bowl, whisk together the melted butter, both sugars, eggs, vanilla extract, sour cream, and mashed bananas until fully incorporated.
04 - Add the dry ingredients to the wet mixture and, using a rubber spatula, mix until just combined. Avoid overmixing to prevent dry muffins.
05 - Gently fold in the blueberries and walnuts until just incorporated.
06 - Divide the batter evenly among the prepared muffin tins, filling each tin all the way to the top. Press a few extra blueberries onto the tops of each muffin and sprinkle with sparkling sugar, if desired.
07 - Bake on the middle rack for 24 to 26 minutes, or until the tops are golden brown and a toothpick inserted into the center comes out clean, or with a few moist crumbs.
08 - Cool the muffins in the pan for at least 15 minutes before serving warm or transferring to a cooling rack.

# Notes:

01 - If your oven runs hot, reduce the temperature to 375°F (190°C) and bake for 25 to 26 minutes to avoid overbaking.
02 - Place the muffin tin on a baking sheet if you frequently experience burnt muffin bottoms.
03 - Bake the muffins on a rack positioned in the middle of your oven for even heat distribution.