MuffinsAmericanEasy

Chocolate Chunk Muffins

Name: Chocolate Chunk Muffins
Prep time: 15 min
Cook time: 22 min
Total time: 37 min
Yield: 12 servings
Cuisine: American
Ingredients: 6 tablespoons (85 g) unsalted butter, melted, melted and slightly cooled; ¾ cup (150 g) granulated sugar; 2 large eggs, at room temperature, beaten lightly; ½ cup (120 ml) whole milk; 1 teaspoon (5 ml) vanilla extract; 1¾ cups (220 g) all-purpose flour; ¼ cup (25 g) unsweetened cocoa powder, sifted to remove lumps; 1½ teaspoons (7 g) baking powder; ¼ teaspoon (1 g) baking soda; ½ teaspoon (3 g) kosher salt; 1¼ cups (225 g) semi-sweet chocolate chunks; ½ teaspoon (2 g) instant espresso powder (optional)

From the MyKitchenBank Kitchen

Tender, moist muffins loaded with chocolate chunks and a hint of cocoa depth. These are soft enough to eat warm from the pan but sturdy enough to pack for lunch. The combination of melted chocolate in the batter and whole chocolate chunks creates two different textures and layers of chocolate flavor.

Prep: 15 min
Cook: 22 min
Wait: 10 min
Total: 47 min
Makes: 12 muffins

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Steps

Before you start

Preheat oven to 375°F (190°C) and line a 12-cup muffin tin with paper liners.
Use room-temperature eggs for better mixing.
Have all ingredients measured and ready before starting.
Do not overmix the batter once wet and dry ingredients are combined.

1
Mix wet ingredients
- In a medium bowl, whisk together the melted butter, beaten eggs, milk, and vanilla extract until smooth and well combined.
- The mixture should be uniform in color with no streaks of butter or egg white visible.
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Ready when: mixture is smooth and uniform
Tip: If your eggs were cold, set the bowl in warm water for 1 minute before mixing to help everything combine smoothly.
2
Combine sugar and wet mix
- Add the granulated sugar to the wet ingredients and whisk for about 1 minute until the sugar is mostly dissolved and the mixture becomes slightly lighter in color and texture.
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Ready when: sugar is mostly dissolved and mixture is lighter
3
Sift dry ingredients
- In a separate medium bowl, sift together the flour, cocoa powder, baking powder, baking soda, salt, and espresso powder (if using).
- Sift twice to remove lumps and aerate the mixture.
- This ensures even distribution of the leavening agents.
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Ready when: dry ingredients are combined and free of lumps
Tip: Sifting cocoa powder is essential—unsifted cocoa often contains clumps that won't hydrate properly and leave gritty bits in your muffins.
4
Fold in dry ingredients
- Add the dry mixture to the wet ingredients and fold together gently using a spatula or wooden spoon for about 10–12 folds, just until no streaks of flour remain.
- Do not stir vigorously or overmix; the batter should look slightly lumpy and thick.
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Ready when: no visible streaks of flour, batter is lumpy but combined
Tip: Overmixing develops gluten and results in tough, dense muffins. Stop as soon as you don't see dry flour—lumps will smooth out during baking.
5
Add chocolate chunks
- Gently fold the chocolate chunks into the batter using 4–6 folds, distributing them evenly throughout.
- Try to reserve a handful of the larger chunks to place on top of each muffin in the next step.
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Ready when: chocolate chunks are distributed throughout
Tip: Reserving some chocolate for the top ensures every muffin has a generous piece of chocolate visible and adds visual appeal.
6
Fill muffin cups
- Divide the batter evenly among the 12 lined muffin cups, filling each about two-thirds full (use an ice cream scoop for even portions).
- Top each muffin with 2–3 of the reserved chocolate chunks, pressing them gently into the batter.
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Ready when: all 12 cups are evenly filled and topped
Tip: Filling to two-thirds allows room for the muffins to rise without overflowing; filling too much creates mushroom tops that may stick to the oven.
7
Bake muffinsOven 375°F / 190°C
- Bake in a preheated 375°F (190°C) oven for 20–22 minutes.
- The muffins are done when a toothpick inserted into the center of one (avoiding a chocolate chunk) comes out clean or with just a few moist crumbs attached.
- The tops should be set and lightly domed, and the edges should feel firm to the touch.
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Ready when: toothpick comes out clean or with a few moist crumbs, tops are domed and set
Tip: Rotate the tin halfway through baking (at 11 minutes) if your oven has hot spots; this promotes even browning. Don't overbake—slightly underbaked muffins are moist and tender, while overbaked ones are dry.
8
Cool and rest
- Remove the muffin tin from the oven and let it rest on a cooling rack for 10 minutes.
- The residual heat will firm up the muffins so they don't fall apart when removed.
- After 10 minutes, gently twist each muffin to loosen it and turn the tin on its side to slide them onto the cooling rack.
- Allow them to cool for at least 5 more minutes before eating.
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Ready when: muffins are firm enough to remove without tearing
Tip: Removing muffins too soon while they're still too hot and soft will cause them to tear or fall apart. The 10-minute rest is crucial.

Good to know

Tips

Room-temperature eggs and milk blend more smoothly into the wet mixture, creating a more homogeneous batter. Cold eggs can cause the butter to solidify in streaks.
Don't skip the espresso powder, even though it's optional—just ½ teaspoon deepens chocolate flavor without making the muffins taste like coffee.
A muffin scoop (about ¼ cup) ensures all muffins are the same size and bake at the same rate. This prevents some from overbaking while others stay underbaked.
These muffins are best eaten the day they're baked, while the crumb is still tender and the chocolate is soft. After 2 days, they begin to dry out.

Make ahead

You can prepare the dry ingredients (flour, cocoa, baking powder, baking soda, salt, espresso) in advance and store them in an airtight container for up to 1 week. You can also prepare the wet ingredients (butter, eggs, milk, vanilla) in a bowl, cover, and refrigerate for up to 4 hours; just let them come to room temperature before folding in the dry ingredients. For best results, fold everything together and bake fresh rather than storing batter overnight.

Storage & reheating

Store cooled muffins in an airtight container at room temperature for up to 2 days. For longer storage, freeze in a freezer-safe bag for up to 3 months. To reheat from room temperature, warm in a 300°F (150°C) oven for 8–10 minutes until just warm through. From frozen, warm in a 300°F (150°C) oven for 15–18 minutes.

Substitutions

semi-sweet chocolate chunks → chopped dark chocolate (70% cacao) or milk chocolate chunks. Dark chocolate creates a less sweet, more sophisticated muffin; milk chocolate makes them sweeter. Use the same weight.
whole milk → buttermilk or plain Greek yogurt thinned with a little water (use equal volume). This adds tanginess and can make the crumb slightly more tender. If using yogurt, thin it to the consistency of milk.
unsalted butter, melted → vegetable oil or melted coconut oil. Use the same amount by volume. Oil creates a slightly more moist crumb but less rich flavor.
granulated sugar → brown sugar (packed) or a mix of half brown and half white. Brown sugar adds moisture and a subtle molasses depth. Use the same weight; brown sugar is slightly denser.