Moist Chocolate Cupcakes

Featured in: Sweet Treats for Every Occasion

With every bite, these cupcakes overflow with bold chocolate. Their soft inside comes from using hot water at the end, making the batter thin and resulting in a super gentle crumb. Good cocoa makes both the cakes and the icing taste rich, and the flavors get even better as they sit overnight. The frosting balances thick chocolate punch with just enough sweetness. For birthdays or random chocolate cravings, you’ll end up with treats that taste like they’re straight from the bakery, and you can make them with stuff you might already have.
A woman in a kitchen smiling.
By Chloe Chloe
Updated on Mon, 16 Jun 2025 12:43:59 GMT
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Get ready for an insanely rich and ultra tender chocolate treat that basically melts as soon as you take a bite. After messing around with different ingredient combos for way too many hours, I finally landed on what my friends now say is the most unforgettable chocolate cupcake ever. The trick? Hitting just the right sweet spot between super moist and sturdy, so each one comes out fudgy and fluffy at the same time.

I remember serving these for my daughter’s birthday and before the cake even got cut, a few people were begging for my secret. There’s just something about cocoa and real buttermilk together that makes these cupcakes taste so much better than what you’d find wrapped in plastic at the store.

Ultimate Ingredients Guide

  • Vegetable oil: Go for a mild option like canola or sunflower since it keeps things moist without taking over the flavors
  • Eggs: Get them to room temp so everything blends smoothly
  • Unsweetened cocoa powder: Pick natural cocoa for punchier taste and sift out clumps first
  • All-purpose flour: Unbleached is the way to go; measure by spooning in and leveling for accuracy
  • Buttermilk: Real cultured buttermilk is key for that awesome texture, so try not to swap it out
  • Baking soda & powder: Double check they’re still good by testing with water before you start
  • Granulated sugar: Finer sugar disappears better in the batter and helps with the soft crumb

Epic Chocolate Cupcake Steps

Filling and Timing:
Use a scoop or ¼-cup to fill each cupcake liner about three quarters full. Don’t fill higher or you’ll get sad, flat tops. Bake for 18–22 minutes. Check with a toothpick—it should come out with a few soft crumbs, not sticky batter. Rotate the pan halfway for even baking love. Leave them in the tin for five minutes, then move to a cool rack so they don’t get soggy bottoms.
Incorporation Technique:
Pour your wet mix into the big bowl of dry ingredients. Fold them together gently with a spatula—about 15 to 20 turns should do it. Scrape the sides and bottom so no dry stuff hides out. Gently stir in half a cup of really hot water (not quite boiling). The batter will look thin but that’s perfect for max moisture.
Temperature Management:
Let eggs and buttermilk hang out at room temp for half an hour. Line your muffin pan with papers and hit them lightly with nonstick spray. Heat up your oven to a solid 350°F (175°C) and use an oven thermometer for confidence. Move your rack to the center so the heat’s even.
Emulsion Creation:
Mix the oil, room temp eggs, buttermilk, and vanilla in a bowl. Give it a good fast whisk for about a minute, until it’s a little frothy and blended. This helps lock in moisture for a beautiful soft texture.
Mixing Method:
Whisk together 1¾ cups flour, 1½ cups sugar, ¾ cup cocoa powder, 1½ teaspoons baking soda, 1 teaspoon baking powder, and ½ teaspoon salt in a big bowl. Do this for about 30 seconds so everything spreads out evenly and the cocoa isn’t clumpy.
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My grandma always swore by real buttermilk when baking chocolate cakes. She said it made her cakes so tender, people would close their eyes and just sigh after that first bite. Turns out, she was right.

Serving Ideas

Stack these chocolate beauties on a layered stand for big impact. Let them reach room temp so the flavor really pops. Hand them out with milk or serve up with hot coffee—can’t go wrong. Want to get extra fancy? Toss on berries, cherries, or even throw on a sprinkle of gold if you’re feeling festive.

Fun Twists

Switch it up with these simple tweaks:

  • Swap hot water for strong coffee—it kicks up the flavor
  • Stir in a teaspoon of instant espresso powder for moodier chocolate
  • Fold in mini chips to add tiny chocolate surprises
  • Drop in a couple spoonfuls of raspberry jam and swirl before baking
  • Spread on peanut butter frosting for an old-school favorite

Smart Storage Tips

Pack up frosted cupcakes in an airtight box and keep them on your counter—good for about three days. If you need more time, tuck unfrosted ones in the freezer (airtight, of course) and they’ll be great for up to three months. To eat, let them thaw at room temp for a couple hours before decorating. You can also whip up your frosting up to three days ahead and stash in the fridge.

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These chocolate treats nail that magical combo of luxe flavor and cozy homemade vibes. You get that big, bold chocolate taste plus a tender bite that never feels heavy. Swirl on chocolate buttercream, or get wild with your favorite toppings—either way, they’ll make any day feel like a mini party.

Frequently Asked Questions

→ Why is this cupcake batter so thin?
It’s supposed to be that way! Pouring in hot water at the end wakes up the cocoa’s flavor and makes the mix pretty liquid, so you get crazy moist cupcakes after baking.
→ Can I switch out the buttermilk?
Yep, you can! Just add a tablespoon of white vinegar or lemon juice to a cup of milk, let it chill for about 5-10 minutes so it curdles a little, and it’ll fake buttermilk's tang and do the job with the baking soda.
→ What’s the best way to keep them fresh?
Pop the frosted ones in a closed container at room temp for three days. They honestly taste even more chocolatey on day two. If you want to hang onto them longer, stick them in the fridge for a week, but let them warm up before you eat so they're fluffy again.
→ Are these okay to freeze?
Totally! Stash plain cupcakes in a sealed box in your freezer and they'll last three months. Thaw and frost later if you want. You can freeze frosted ones too, just know the top might look a bit different after thawing.
→ What keeps these cupcakes super soft?
A few things: swapping in oil makes them moist for longer, buttermilk keeps it tender, and adding hot water thins the batter and really lets the cocoa do its thing for the softest cupcake with awesome flavor.

Moist Chocolate Cupcakes

Bite into a soft, chocolate-packed cake with a rich swirl of velvety chocolate icing. It’s what every chocolate fan wants in a dessert.

Prep Time
15 Minutes
Cook Time
20 Minutes
Total Time
35 Minutes
By Chloe: Chloe

Category: Desserts

Difficulty: Intermediate

Cuisine: American

Yield: 24 Servings (24 cupcakes)

Dietary: Vegetarian

Ingredients

→ Chocolate Cupcakes

01 1 teaspoon salt
02 2 teaspoons baking soda
03 1 teaspoon baking powder
04 3/4 cup cocoa powder (use a good quality one)
05 1 cup hot water
06 1 3/4 cup sugar (granulated)
07 1 3/4 cup regular flour
08 1 1/2 teaspoons vanilla flavoring
09 1/2 cup of either canola or coconut oil
10 2 eggs (large size)
11 1 cup buttermilk

→ Chocolate Buttercream

12 3 1/2 cups powdered sugar
13 1 cup softened butter (let it sit out for a bit)
14 3/4 cup cocoa powder
15 2-3 tablespoons of milk, cream, or half-and-half

→ Garnish

16 Chocolate chips or shavings for topping

Instructions

Step 01

Set your oven to 350°F (175°C), making sure the oven rack sits in the middle.

Step 02

Grab a big bowl and mix together the flour, baking soda, cocoa powder, baking powder, sugar, and salt. Sifting is a good idea if you want everything super smooth.

Step 03

In another bowl, whisk together vanilla, eggs, oil, and buttermilk for roughly a minute till it’s fully blended.

Step 04

Slowly stir the dry mix into your wet ingredients, bit by bit. Add the hot water at the end and mix until it’s smooth. The batter will be very thin—don’t worry, this makes the cupcakes moist!

Step 05

Pop paper liners into your cupcake tins and lightly spritz with cooking spray. Pour batter into each liner until it’s about 3/4 full.

Step 06

Bake for 18-22 minutes. You’ll know they’re ready when a toothpick poked into one comes out without any wet batter.

Step 07

Take the cupcakes out and let them completely cool off before you start frosting them.

Step 08

While you wait, mix softened butter and cocoa powder together until smooth. Slowly add powdered sugar and a little milk. Beat until fluffy, adding more milk if it’s too thick.

Step 09

Once cool, spread a nice layer of frosting on each cupcake. Add chocolate shavings or your favorite sprinkles to finish it off.

Notes

  1. Store these in an airtight box, and they’ll taste even better the next day!
  2. Adding hot water is the key to making these so soft and moist.

Tools You'll Need

  • Cupcake trays
  • Paper liners for cupcakes
  • Bowls for mixing
  • Hand or electric mixer
  • Measuring spoons and cups
  • A sifter, if you want smoother ingredients

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Eggs are included
  • Dairy items like buttermilk, butter, and cream are present
  • The recipe uses wheat-based flour, so there’s gluten

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 275
  • Total Fat: 14 g
  • Total Carbohydrate: 36 g
  • Protein: 3 g