Moist and light with a sugary crusted top, these muffins are bursting with blueberry goodness. The acidity from the buttermilk breaks down the gluten strands in the flour producing a beautifully tender crumb.
1Sift the flour and baking powder together and set aside.
2Whisk the buttermilk and oil together and set aside.
3Using a stand mixer, beat the butter, on high speed for 2 minutes, or until softened. Add the sugar, salt and vanilla and beat for 3 minutes, or until pale and creamy, scraping down the bowl.
4Reduce the speed to medium and add the eggs one at a time, beating well between each addition.
5Reduce the speed to low and add a third of the flour, followed by half the buttermilk mixture. Repeat until incorporated.
6Add the blueberries and gently fold to combine.
7Insert the wire rack in the bottom position. Set the oven to Bake, Convection, 325°F, for 25 minutes and press Start to preheat. Meanwhile, continue to the next step.
8Line 2 x standard 6-cup muffin pans with paper liners. Divide the batter evenly among the liners. Sprinkle with sugar to create a crispy top.
9Once preheated, place one of the pans in the oven and cook for 25 minutes. Halfway through cooking, rotate the pan.
10The muffins are ready when a skewer inserted into the center comes out clean. If not, cook them a little longer.
Tip: Don't insert the skewer into any of the cracks as this will give an inaccurate reading.
11Stand in the pan for 10 minutes, then transfer to a wire rack to cool. Repeat with the remaining muffins.
12Best eaten the day they are made but will keep in an airtight container for up to 3 days at room temperature or frozen for up to 3 months.