These are the perfect and easiest brownies muffin recipe you'll ever need. Sweet and full of chocolate flavor (thanks to the melted chocolate and cocoa powder), it's a one-bowl recipe that's out of the oven in 40 minutes.
Line 12 muffin cups with paper liners or butter the pan.
Melt 1 cup unsalted butter and 5 oz semisweet chocolate in a large bowl. See Notes below for instructions.
Add 1 cup white sugar and ½ cup dark brown sugar and mix. Add 4 eggs and mix well but do not beat.
Add the sifted dry ingredients: 1 cup all-purpose flour, 1 tablespoon unsweetened cocoa powder, ¼ teaspoon salt and ½ teaspoon baking powder. You can sift them before or have the ingredients measured and sift them directly over the batter (my choice).
Add 1 teaspoon vanilla extract and stir to combine.
Divide batter evenly between muffin cups.
Bake for about 20 minutes, or until a cake tester or toothpick comes out with some moist crumbs. They should be barely jiggly when you touch the tops, just like a brownie.
Let cool on a wire rack.
Video
Notes
Melt the chocolate: always start with chopped chocolate in a microwaveable or glass bowl. You can use the microwave (short 10-15 second spurts, stirring well between each one until it's fully melted) or a double boiler with the bowl containing the chopped chocolate not touching the water. In both cases, make sure it doesn't scorch.When are they done: as with any brownie-like recipe, take them out while still a bit soft in the center. If they are very springy when you touch them, they are somewhat overbaked. They will be delicious anyway, but not as fudgy, but cakeier.Freezing: they freeze beautifully. Wrap them well or use an airtight container made for the freezer. Defrost at room temperature.Mini brownies in muffin form: An alternative is to bake them in a mini muffin pan and make brownie bites. They're the perfect size for a gathering or after-dinner coffee. The baking time will be lower, so keep that in mind.