Extra Moist Cupcakes

Featured in Sweet Treats You'll Actually Make Twice.

If you're hooked on chocolate, these cupcakes are for you. The batter stays runny on purpose because hot water brings out the cocoa’s bold flavor and ensures the crumb is soft and moist. Good-quality cocoa makes every bite intense, while the buttercream keeps things creamy and sweet. These taste even better the day after, so don’t worry about making them early. Made with everyday ingredients, they’re perfect for special events or anytime chocolate’s calling!
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Updated on Tue, 18 Mar 2025 09:47:31 GMT
Chocolate cupcake topped with creamy frosting. Pin it
Chocolate cupcake topped with creamy frosting. | cookbybook.com

Dive into chocolate heaven with these indulgent homemade treats. After countless kitchen trials, we've nailed the sweet spot between intense cocoa flavor and soft, juicy texture. Carefully selected ingredients come together to create a dessert that'll make you forget about store-bought versions.

Everyone raves about these cupcakes because of their bold chocolate kick and spot-on consistency. The magic duo of cocoa and tangy buttermilk brings a depth and richness you won't forget.

Must-Have Components

  • All-Purpose Flour: Use unbleached and measure it right for the best structure and feel.
  • Granulated Sugar: The small crystals melt easily, giving just the right sweetness.
  • Cocoa Powder: Go for natural unsweetened, and don't skip sifting to keep the mix smooth.
  • Leaveners: Make sure your baking soda and powder are fresh for perfect lift and airy texture.
  • Neutral Oil: This keeps everything moist without changing the taste.
  • Fresh Eggs: Let them sit at room temp first for better mixing and texture.
  • Buttermilk: The real cultured stuff makes all the difference for softness and flavor.

Step-By-Step Process

Getting Ready:
Heat oven to 350°F with rack in middle. Let cold stuff warm up. Line muffin pan with papers and give them a quick spray.
Powder Mix:
Grab a bowl and stir 1¾ cups flour, 1½ cups sugar, ¾ cup cocoa, 1½ teaspoons baking soda, 1 teaspoon baking powder, ½ teaspoon salt for half a minute.
Liquid Blend:
Mix ½ cup oil, 2 eggs, 1 cup buttermilk, 2 teaspoons vanilla until they're nicely combined and a bit fluffy.
Putting Together:
Dump wet stuff into dry stuff. Stir gently just until mixed. Add ½ cup really hot water, mix until smooth. Your mix will be runny.
Oven Time:
Pour into liners about ¾ way up. Bake 18-22 minutes until a toothpick shows damp crumbs. Turn pan around halfway. Let cool 5 minutes in pan before moving to rack.
A chocolate cupcake with chocolate frosting. Pin it
A chocolate cupcake with chocolate frosting. | cookbybook.com

Old-school baking secrets handed down through families prove that actual buttermilk is the key to getting that incredibly soft bite that makes these cupcakes stand out.

Serving Suggestions

Stack them on a fancy stand to wow your guests. Don't serve them cold. Pair with ice-cold milk or hot coffee. Add fresh berries or shiny sprinkles for parties.

Tasty Twists

Jazz up your treats by swapping water for hot coffee to boost chocolate flavor, and throw in some espresso powder for extra richness. Drop in tiny chocolate chips for more texture, then add swirls of raspberry jam for a fruity kick. Top it all off with smooth peanut butter frosting that perfectly balances the intense chocolate base.

Keeping Fresh

Store topped cupcakes in airtight container on the counter for 3 days. Pop plain ones in the freezer for up to 3 months. Let them sit out 2 hours before adding frosting. You can make the topping 3 days ahead and chill if needed.

A chocolate cupcake with chocolate frosting. Pin it
A chocolate cupcake with chocolate frosting. | cookbybook.com

These chocolate treats show off the perfect mix of deep flavor and gentle texture. They turn out great every time, making them perfect for casual get-togethers or fancy parties. This go-to recipe works as a starting point for many creative spins while still keeping its timeless charm.

Frequently Asked Questions

→ Why does the batter look so runny?
Don’t stress—the thin batter is how it’s supposed to be! Hot water unlocks the cocoa’s full flavor and keeps the cupcakes extra moist and soft.
→ What can I use instead of buttermilk?
No buttermilk? No problem! Stir a tablespoon of vinegar or lemon juice into a cup of milk. Let it sit for a few minutes until it curdles, and you're good to go!
→ How do I store these to keep them fresh?
Keep frosted cupcakes in a sealed container, and they’ll last about 3 days at room temp (even better on day two!). For longer storage, pop them in the fridge for a week and let them come to room temp before eating.
→ Can these cupcakes be frozen?
Yep, they freeze like magic! Store plain ones in an airtight container for up to three months. Defrost at room temp before adding frosting. Frosted ones can also be frozen but might not look as neat when thawed.
→ What makes them stay so soft and moist?
A combo of things! Oil locks in moisture, buttermilk makes the crumb super tender, and the hot water thins the batter for that moist texture while enhancing the cocoa flavor.

Extra Moist Cupcakes

Soft and rich chocolate cupcakes finished with velvety chocolate buttercream that melts in your mouth. A chocolate lover’s dream treat!

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

Category: Desserts

Difficulty: Intermediate

Cuisine: American

Yield: 24 Servings (24 cupcakes)

Dietary: Vegetarian

Ingredients

→ Chocolate Cupcakes

01 2 large eggs
02 1 cup of boiling water
03 1 teaspoon of salt
04 3/4 cup of cocoa powder
05 1 teaspoon of baking powder
06 1 3/4 cups of granulated sugar
07 1 1/2 teaspoons of vanilla extract
08 1 3/4 cups of all-purpose flour
09 2 teaspoons of baking soda
10 1/2 cup of coconut or canola oil
11 1 cup of buttermilk

→ Chocolate Buttercream

12 3 1/2 cups of powdered sugar
13 1 cup of room-temperature butter
14 2 to 3 tablespoons of cream, milk, or half-and-half
15 3/4 cup of cocoa powder

→ Garnish

16 Mini chocolate chips, decorative sprinkles, or shaved chocolate curls

Instructions

Step 01

Heat your oven to 350°F (175°C). Set the middle rack so your cupcakes bake evenly.

Step 02

Blend sugar, flour, cocoa powder, salt, baking soda, and baking powder in a big bowl. Use a sifter to smooth it if needed.

Step 03

In another bowl, beat the eggs, buttermilk, oil, and vanilla together. It's ready once it looks well mixed, which takes about a minute.

Step 04

Stir the wet and dry mixes slowly until blended. Add the hot water last, and keep stirring. The thin batter is what makes the cupcakes soft!

Step 05

Put cupcake liners in your trays and lightly spray them. Then fill each liner around 3/4 full with the batter.

Step 06

Pop the trays in the oven for 18–22 minutes. When a toothpick inserted in the center comes out dry, they're good to go.

Step 07

Take the cupcakes out of the trays to cool completely. Frosting warm cupcakes won't work well.

Step 08

While your cupcakes cool, cream the softened butter and cocoa powder together. Slowly blend in the powdered sugar, adding cream as needed, until the frosting spreads smoothly.

Step 09

Once cooled, spread or pipe the buttercream on the cupcakes. Sprinkle with chocolate curls, chips, or other fun toppings.

Notes

  1. Store cupcakes in a sealed container overnight to enhance the flavor.
  2. Adding boiling water to the batter is the trick for super moist cupcakes.

Tools You'll Need

  • Muffin or cupcake pans
  • Cupcake liners to hold your batter
  • Mixing bowls of varying sizes
  • Electric mixer or handheld beaters
  • Measuring tools (spoons and cups)
  • A sifter can help make the dry mix finer

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Eggs are included in this.
  • Dairy products like butter and buttermilk are part of this.
  • This contains gluten from the flour.

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