Irresistible Old-Fashioned Peanut Butter Cake

Featured in Irresistible Sweet Treats.

Take a trip down memory lane with this peanut butter cake that’s sure to please. Start by combining your dry ingredients: flour, salt, baking powder, and soda. Cream butter (softened), brown sugar, granulated sugar, and peanut butter until fluffy. Beat in eggs, one at a time, and add vanilla. Gradually mix the dry ingredients into the wet ones, alternating with buttermilk, beginning and ending with the flour mixture. Pour the batter into a prepped 9×13-inch baking dish, bake at 350°F (175°C) for 30-35 minutes, and let it cool before frosting. For the topping, whip peanut butter and butter together. Add powdered sugar, milk, and vanilla gradually until it’s smooth and easy to spread. Frost, cut into squares, and enjoy!
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Updated on Fri, 07 Mar 2025 05:20:30 GMT
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Irresistible Old-Fashioned Peanut Butter Cake | cuisinegenial.com

Experience a beloved classic with this timeless Peanut Butter Layer Cake. Each slice delivers rich peanut butter flavor and tender, moist crumb, crowned with a silky smooth peanut butter frosting that captures pure comfort in every bite.

This treasured recipe brings the essence of homestyle baking to your kitchen. The aroma of vanilla and peanut butter creates an inviting warmth that fills the house as it bakes.

Essential Ingredients

  • Softened Butter: Must be room temperature
  • Smooth Peanut Butter: Commercial style preferred
  • Cake Flour: Measured carefully
  • Brown Sugar: For moisture and depth
  • Farm Fresh Eggs: Room temperature
  • Pure Vanilla: Quality matters
  • Whole Milk: Creates tenderness
  • Fresh Baking Powder: Essential for lift

Preparation Method

1. Initial Setup:
Heat oven to 350°F. Prepare 9x13 pan with grease and flour or parchment. Have ingredients at room temperature.
2. Mix Dry Components:
Combine and whisk flour, baking powder, salt thoroughly. Reserve for later use.
3. Cream Mixture:
Beat butter, peanut butter, sugars until light and doubled in volume, about 5 minutes. Scrape bowl often.
4. Add Wet Elements:
Incorporate eggs individually. Blend in vanilla. Mixture may appear split temporarily.
5. Combine All:
Add dry ingredients and milk alternately, starting and finishing with flour. Mix minimally to avoid toughness.
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Old-Fashioned Peanut Butter Cake Recipe | cuisinegenial.com

Baker's Notes

  • Ingredients must be room temperature
  • Standard peanut butter works better than natural
  • Watch carefully to avoid overbaking
  • Cool thoroughly before frosting
  • Keeps fresh 5 days at room temperature

Success comes from attention to detail. Each step builds flavor and texture. Take time with the creaming process and cooling period for best results.

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Easy Old-Fashioned Peanut Butter Cake | cuisinegenial.com

Storage Instructions

Store covered at room temperature up to 5 days. Unfrosted cake freezes well for 3 months when wrapped properly. Frosting keeps refrigerated 1 week - bring to room temperature and whip before using. For optimal results, frost just before serving.

Serving Suggestions

Perfect year-round, but especially welcome in fall. Keep cool in summer months to maintain frosting stability. Consider adding thin strawberry jam layer between cake and frosting for variation. Works well as cupcakes with adjusted 18-20 minute bake time.

Professional Tips

  • Verify baking powder freshness
  • Choose light metal bakeware
  • Turn pan during baking
  • Season frosting with salt
  • Rest buttercream before final mixing
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Homemade Old-Fashioned Peanut Butter Cake Recipe | cuisinegenial.com

This classic Peanut Butter Cake represents the best of traditional baking. Quality ingredients and proper technique combine to create an enduring favorite for any occasion.

Frequently Asked Questions

→ Can I go for crunchy peanut butter instead?
Totally! Crunchy peanut butter will give the cake some extra texture while keeping that same great taste.
→ What’s a good substitute if I don’t have buttermilk?
You can mix 1 cup of milk with a tablespoon of white vinegar or lemon juice. Stir it up and let it sit for a few minutes before you use it.
→ How long will this stay fresh after baking?
If kept in an airtight container, this cake will stay good for about 4 days at room temperature.
→ Can I freeze it?
Yes, you can freeze the cake without the frosting for up to 2 months. When ready, defrost it overnight in the fridge, then add frosting before serving.
→ Is this safe for someone with nut allergies?
Unfortunately, no. Since peanuts are a main ingredient, this isn’t suitable for anyone with nut allergies.

Peanut Butter Bliss

Dive into this easy peanut butter cake that’s moist, rich, and topped with a creamy frosting for a nostalgic sweet treat everyone will love.

Prep Time
20 Minutes
Cook Time
35 Minutes
Total Time
55 Minutes
By: Ferdaous

Category: Desserts

Difficulty: Intermediate

Cuisine: American

Yield: 12 Servings (1 cake)

Dietary: Vegetarian

Ingredients

→ Cake Ingredients

01 1 cup buttermilk
02 2 teaspoons baking powder
03 1/2 teaspoon baking soda
04 1 teaspoon vanilla extract
05 1/2 cup unsalted butter, softened
06 1 cup packed brown sugar
07 2 large eggs
08 1 cup granulated sugar
09 1/2 teaspoon salt
10 2 cups all-purpose flour
11 1 cup creamy peanut butter

→ Frosting Ingredients

12 1 teaspoon vanilla extract
13 1/2 cup soft butter (unsalted)
14 3 cups powdered sugar
15 1/2 cup creamy peanut butter
16 1/4 cup milk

Instructions

Step 01

Set the oven to 350°F (175°C). Lightly grease a 9x13-inch pan and dust with flour.

Step 02

Use a medium-sized bowl to blend together the flour, salt, baking powder, and baking soda. Keep it to the side for now.

Step 03

In a bigger bowl, beat the granulated sugar, brown sugar, peanut butter, and butter until it looks fluffy and airy.

Step 04

Beat one egg at a time into the mix. Stir in the vanilla extract after that.

Step 05

Slowly add the dry blend to the wet mix in parts, switching with a little buttermilk in between. Start and finish with the dry mix and stir until it's just mixed together.

Step 06

Pour your batter into the prepared pan and smooth it out. Let it bake for 30–35 minutes or until a toothpick comes out clean.

Step 07

Let the cake sit in the pan and cool down fully on a cooling rack.

Step 08

Blend the peanut butter and butter until silky. Slowly add powdered sugar, milk, and vanilla extract while beating it into a smooth and fluffy texture.

Step 09

Carefully spread the frosting over the cooled cake. Cut slices and enjoy!

Notes

  1. If you're out of buttermilk, substitute it with regular milk mixed with lemon juice or vinegar.
  2. Always wait for the cake to be completely cool to avoid melted frosting.

Tools You'll Need

  • 9x13-inch baking dish
  • Mixing bowl (large)
  • Mixing bowl (medium)
  • Cooling rack
  • Whisk or hand mixer
  • Rubber spatula

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Made with wheat-based flour
  • Contains dairy from butter and milk
  • Made with peanut butter
  • Includes eggs

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 450
  • Total Fat: 18 g
  • Total Carbohydrate: 65 g
  • Protein: 8 g