Fudgy Brownie Muffins Recipe: Chocolate Muffins with Gooey Centers

Combine brownies with muffins and you get these incredibly fudgy Brownie Muffins. They’re like mini brownies but even better—dense, rich, and loaded with chocolate in every bite.

These brownie muffins bake up with crisp outer edges and gooey, fudgy centers. Whether you love the crunchy edge or the soft middle, these deliver the best of both worlds. The batter is very thick, which helps create a shiny, crackly top and an indulgently fudgy interior.

Ingredients Notes

Key ingredients used in these Brownie Muffins.

• Butter – Unsalted butter is recommended; it will be melted for this recipe.
• Brown sugar – Dark brown sugar adds extra depth of flavor.
• Chocolate – Semi-sweet chocolate chips work well. You can also use chopped milk or dark chocolate bars if you prefer.
• Cocoa powder – Use a high-quality unsweetened cocoa powder and sift it before mixing to ensure a smooth, chocolaty batter.
• Eggs – Bring eggs to room temperature for best texture.
• Vanilla – Use good-quality vanilla extract for the best flavor.

Step by step instructions

Follow these steps to make fudgy Brownie Muffins. A 12-cup muffin tin, liners, mixing bowls, a spatula, and a whisk will make the process easy.

Step 1 – Prep. Preheat the oven to 350°F (176°C). Line a 12-cup muffin tin with liners and set aside.

Step 2 – Mix dry ingredients. In a medium bowl combine the dry ingredients: all-purpose flour, sifted cocoa powder, baking soda, baking powder, and salt. Stir and set aside.

Step 3 – Melt butter and chocolate. Melt the butter using a double boiler or microwave. Add the chocolate chips to the warm butter and stir until smooth and fully combined. Transfer the mixture to a large bowl.

Step 4 – Add sugars. Stir in the white and brown sugar until combined; the mixture will be thick.

Step 5 – Add oil. Whisk in the oil until the mixture is smooth and homogenous.

Step 6 – Add eggs and vanilla. Make sure the chocolate mixture is warm, not hot. Add the eggs and vanilla, then whisk for 2–3 minutes until air bubbles form. Incorporating air here helps create the crackly top.

Step 7 – Mix together. Fold the dry ingredients into the wet ingredients using a spatula until a thick brownie batter forms. Mix gently and avoid overworking the batter.

Step 8 – Add chocolate. Fold in the additional chocolate chips a few times so they’re evenly distributed.

Step 9 – Scoop into liners. Divide the batter evenly among the lined muffin cups; a cookie scooper helps keep this step tidy. Add extra chips on top if you like.

Step 10 – Bake. Bake the muffin cups for 25–35 minutes. For extra gooey centers, check at 25–30 minutes; for chewier, more set middles bake 30–35 minutes. The author baked for 27 minutes and removed them when a toothpick came out with a few damp crumbs.

FAQ

How do I store Brownie Muffins?

Store muffins in an airtight container. They’re best fresh or the next day, and will keep up to 5 days at room temperature.

Do I have to add chocolate chips?

No. Chocolate chips are required to be melted with the butter, but adding extra chips into the batter is optional.

Do I have to use muffin liners?

Linings are recommended because they make removal easier and keep the tin cleaner.

Why are my brownie muffins dry?

They were likely overbaked. These are meant to be fudgy—remove them when the edges look set and the center is still soft. A toothpick should come out with moist crumbs rather than completely clean.