Triple Chocolate Muffins

Three kinds of chocolate earn this muffin its name. Unsweetened baking chocolate melts into the batter for deep cocoa flavor, then milk and semi-sweet chocolate chips fold through to give every bite both creamy and bittersweet pockets.

The buttermilk does serious work. Its acidity activates the baking soda for lift and tenderizes the gluten, which is the difference between a fluffy chocolate muffin and a dense, brick-like one. The result has the moist, almost-cake texture you’d expect from a bakery muffin, with that craggy domed top.

Optional toasted walnuts bring crunch and a roasted earthy note that balances the sweetness, but the muffin holds up beautifully without them. The technique is straightforward: melt the butter and unsweetened chocolate together gently, mix the wet ingredients separately, then bring everything together quickly so the batter stays light.

Pro Tips

• Melt the butter and unsweetened chocolate together slowly over low heat or in short bursts in the microwave. Scorched chocolate goes grainy and ruins the muffins.
• Cool the chocolate-butter mixture briefly before adding the eggs. Hot chocolate will scramble them.
• Don’t overmix once the flour goes in. Stir just until smooth. Too much mixing develops gluten and makes tough muffins.
• Fill the cups two-thirds full, not all the way. Overfilled cups overflow and produce flat tops instead of tall domes.

Variations

• Add 2 tablespoons of espresso powder to the dry ingredients for a mocha twist that deepens the chocolate notes.
• Swap walnuts for chopped pecans or hazelnuts for a different nut character.
• Drizzle melted chocolate over the cooled muffins and top with flaky sea salt for a dressier, dessert-leaning version.