These mini muffins bake up soft, fluffy, and golden in just over 20 minutes. With a light sweetness and plenty of chocolate chips, they’re the perfect quick snack or breakfast bite. This recipe makes 30 muffins, ideal for sharing, meal prep, or freezing for later.
Prepare the oven and muffin pan: Begin by preheating your oven to 375°F (190°C). This ensures the oven is fully heated by the time your batter is ready, which is key for achieving tall, fluffy muffins. While the oven is heating, line a 24-cup mini muffin tin with 15 paper liners, leaving empty spaces between them in an alternating pattern. This spacing encourages better airflow around each muffin, helping them rise higher and bake evenly. Set the tin aside.
Combine the dry ingredients: In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, baking soda, and salt. Whisking not only mixes the ingredients evenly but also helps aerate the flour slightly, which gives the muffins a lighter texture. Be sure there are no clumps of flour or sugar remaining before moving to the next step.
Blend the wet ingredients: In a separate medium bowl or a large liquid measuring cup, whisk the sour cream, melted butter, egg, and vanilla extract until fully combined. The mixture may look slightly separated due to the butter, but this is completely normal. Keep whisking until everything looks as smooth as possible—this step ensures moisture and flavor are evenly distributed throughout the batter.
Bring wet and dry mixtures together: Pour the wet mixture into the bowl of dry ingredients. Using a spatula, gently fold the two together. The batter will look thick and somewhat dry at first—don’t worry, this is exactly how it should be. Stir slowly and carefully to avoid overmixing, which can make muffins dense instead of soft.
Add the chocolate chips: Once the batter is about halfway mixed (you should still see some streaks of flour), add in the mini chocolate chips. Continue folding gently until everything is combined and no dry patches of flour remain. At this stage, the batter should be thick but scoopable. The chocolate chips should be evenly distributed, so each muffin gets a perfect pop of chocolate.
Portion the batter into the pan: Using a 1 ½ tablespoon cookie scoop, portion the batter into the prepared muffin liners. The liners should be filled nearly to the top, which helps create a rounded, bakery-style muffin top. If you like a bit of extra crunch and sweetness, sprinkle a small pinch of coarse sugar on top of each filled muffin cup before baking.
Bake the muffins: Place the muffin tin on the center rack of your preheated oven. Bake for 12–13 minutes, or until the muffin tops are lightly golden and a toothpick inserted into the center comes out clean or with just a few moist crumbs. Avoid overbaking, as it can dry out the muffins—pull them from the oven as soon as they’re set and fluffy.
Cool and prepare the next batch: Allow the muffins to rest in the pan for about 5 minutes. This brief cooling period makes them easier to remove without breaking. Carefully transfer them to a wire cooling rack to finish cooling. If you still have batter left, let the muffin pan cool before re-lining it with paper liners for the second batch. Don’t worry if the batter sits covered at room temperature while you wait—it actually helps the second round bake with taller, more domed tops.
Notes
This recipe makes 30 mini muffins, so you’ll need to bake them in two batches. Leaving empty spaces in the muffin tin by alternating the liners helps the muffins rise taller and bake more evenly.
The batter may look quite thick compared to standard muffin recipes—this is normal! The result is a soft, fluffy muffin with a beautifully domed top.
Coarse sugar is optional but highly recommended for a bakery-style look and subtle crunch. If you don’t have coarse sugar, a light sprinkle of regular sugar works fine, or you can skip it altogether.
Muffins are best enjoyed warm from the oven but also freeze wonderfully, making them perfect for meal-prep or quick lunchbox treats.