These Sour Cream Blueberry Muffins are soft, tender, and full of juicy blueberries — made with full-fat sour cream for the best texture and finished with a golden sugar-sparkled top. A cozy, reliable muffin recipe just like Nana used to make (with a few modern tweaks).
In a separate bowl or large measuring jug, whisk together the sour cream and eggs until smooth. Stir in the oil, sugar, and vanilla until fully combined.
1½ cups full-fat sour cream, 2 large eggs, ½ cup vegetable oil, 1 cup granulated sugar, 1½ teaspoons vanilla extract
If using fresh blueberries, rinse and pat them dry. If using frozen, no need to thaw — just grab them straight from the freezer. Add the berries to the flour mixture and toss to coat (note 2).
2 cups fresh or frozen blueberries
Pour the sour cream mixture into the dry ingredients and stir gently with a spatula until just combined. The batter will be thick — that’s exactly what you want.
Divide the batter between the muffin cups, filling them nearly to the top. Sprinkle with coarse sugar and press in a few extra blueberries on top if you want that pretty bakery look.
coarse sugar
Place muffin pans in the oven and immediately reduce the temp to 400°F. Bake for 5 minutes, then reduce to 350°F (don’t open the oven!) and bake for 15–18 minutes more, until a toothpick comes out clean.
Cool in the pan for 5–10 minutes, then transfer to a wire rack. Serve warm or let cool completely and store in an airtight container.
Notes
(1) Use frozen berries straight from the freezer to prevent color bleed.
(2) Tossing berries in flour keeps them from sinking.
Don’t overmix — thick batter is good!
Full-fat sour cream gives the best texture.
Coarse sugar = sparkly, crunchy tops.
Bake high, then lower temp for perfect rise.
Store airtight 2–3 days room temp, or refrigerate up to 5. Freezer-friendly!