Old Fashioned Peanut Butter Sheet Cake

Baking an old-fashioned peanut butter sheet cake is like wrapping yourself in a warm blanket on a chilly day. This comforting dessert brings back so many memories, especially when you share it with family and friends. It’s a delightful treat that fills the kitchen with the warm, nutty aroma of peanut butter, making it simply irresistible.

At its heart, this recipe combines classic ingredients to create a cake that is both rich and moist. You’ll use 2 cups of all-purpose flour and 2 cups of sugar to give it structure and sweetness. One cup of unsweetened peanut butter lends a deliciously creamy texture, while buttermilk adds a tangy depth to the flavor profile. The vegetable oil keeps the cake moist; four large eggs provide stability; baking soda gives it that perfect rise; and a hint of vanilla extract rounds out the flavors. Each bite is a joyous mix of sweetness, nuttiness, and just the right amount of softness.

The method for making this cake is straightforward, making it perfect for bakers of all skill levels. You simply preheat the oven to 350°F (175°C) and grease your sheet cake pan. Mix the dry ingredients together in one bowl, and whisk the wet ingredients in another. Then, combine the two and pour the batter into the pan. After about 30 to 35 minutes in the oven, you will have a beautifully baked sheet cake that is ready to cool before serving.

This cake is perfect for many occasions, whether it’s a family gathering, a potluck, or simply a treat for yourself on a cozy afternoon. Its warm, inviting flavor makes it a delightful companion on cold nights or a lovely dessert to share with loved ones at a weekend gathering.

Why You’ll Love This Old Fashioned Peanut Butter Sheet Cake

  • Quick to Make: This recipe doesn’t require special skills. In no time, you can have a delicious cake ready to enjoy.
  • Simple Ingredients: The ingredients are pantry staples, so you probably have everything you need at home.
  • Comfort Food: The rich peanut butter flavor and soft texture are pure comfort in every bite.
  • Versatile: Dress it up with frosting, or serve it plain. It fits any occasion, making it a go-to recipe.
  • Easy to Share: A sheet cake is easy to slice and serve, perfect for gatherings with family and friends.
See also  Simple Cherry Almond Bundt Cake

Peanut Butter Tips

When working with peanut butter, choosing the right product can affect your cake’s outcome. Always opt for unsweetened peanut butter with no added sugars or oils. Natural peanut butter is a great choice, as it contains just peanuts and salt. If the oil separates, simply stir it back in before measuring. This ensures your cake will have a consistent flavor and texture.

Options for Substitutions

  • Use whole wheat flour in place of all-purpose flour for a healthier twist.
  • Substitute honey or maple syrup for some of the sugar for a natural sweetening option.
  • Swap out creamy peanut butter for chunky peanut butter for added texture.
  • Use almond milk or oat milk instead of buttermilk for a dairy-free version.
  • Replace vegetable oil with melted coconut oil for a flavor twist.
  • If you don’t have buttermilk, mix 1 cup of milk with 1 tablespoon of vinegar and let it sit for 5 minutes to create a quick substitute.

Watch Out for These Mistakes

One common mistake is overmixing the batter. When you combine the wet and dry ingredients, mix just until everything is combined. Overmixing can lead to a tough texture.

Another pitfall is not checking your oven’s temperature. Ovens can vary, so it’s always good to use an oven thermometer if you’re unsure. If the oven is too hot, it may cause the cake to bake unevenly.

Also, don’t forget to grease your pan properly. A well-greased pan helps to ensure the cake comes out whole after you bake it.

Finally, avoid opening the oven door too early during baking. This can cause fluctuations in temperature and lead to a sunken cake. Wait until the last few minutes to check for doneness.

old fashioned peanut butter sheet cake 2026 05 31 023317
IMAGE: RECIPEDELICIOUS.NET / ALL RIGHTS RESERVED
SAVE NOW

What to Serve With Old Fashioned Peanut Butter Sheet Cake?

This cake pairs wonderfully with a simple scoop of vanilla ice cream. The cold creaminess balances the richness of the peanut butter. Alternatively, you might enjoy it alongside a cup of hot coffee or tea for a cozy afternoon treat. For a more indulgent experience, drizzle some chocolate sauce over the top or serve it with fresh berries for a touch of brightness.

Storage Instructions

Store: This cake can be kept in an airtight container in the refrigerator for about 5 days.

See also  Zero Sugar Brownies with Greek Yogurt

Freeze: If you need to keep it longer, you can freeze the cake for up to 2 months. Make sure to wrap it tightly in plastic wrap and then in aluminum foil to prevent freezer burn.

Reheat: To reheat, simply slice the cake and warm it in the microwave for about 15-20 seconds. Alternatively, you can warm it on the stovetop in a non-stick skillet for 1-2 minutes on low heat.

Recipe Info

Preparation Time: 15 minutes
Cooking Time: 30-35 minutes
Total Time: 45-50 minutes
Level of Difficulty: Easy
Servings: About 12-15 servings

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

  • Calories: 2,800-3,000
  • Protein: 55-60 grams
  • Fat: 120-130 grams
  • Carbohydrates: 360-380 grams

Ingredients

  • 2 cups all-purpose flour
  • 2 cups sugar
  • 1 cup unsweetened peanut butter
  • 1 cup buttermilk
  • 1 cup vegetable oil
  • 4 large eggs
  • 2 teaspoons baking soda
  • 1 teaspoon vanilla extract
  • 1 teaspoon salt

Step-by-Step Instructions

Step 1: Preheat Oven and Prep Pan

Preheat your oven to 350°F (175°C) and grease your sheet cake pan to ensure your cake doesn’t stick.

Step 2: Mix Dry Ingredients

In a large mixing bowl, combine the 2 cups of all-purpose flour, 2 cups of sugar, 2 teaspoons of baking soda, and 1 teaspoon of salt. Mix them together thoroughly.

Step 3: Combine Wet Ingredients

In another bowl, whisk together 1 cup of unsweetened peanut butter, 1 cup of buttermilk, 1 cup of vegetable oil, 4 large eggs, and 1 teaspoon of vanilla extract. Make sure all ingredients are well combined and smooth.

Step 4: Mix Wet and Dry Ingredients

Pour the wet mixture into the bowl of dry ingredients. Gently mix them together until just combined. Be careful not to overmix; a few lumps are okay.

Step 5: Pour Batter into Pan

Pour the batter into your prepared sheet cake pan. Use a spatula to smooth the top for even baking.

Step 6: Bake the Cake

Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean. Keep an eye on it during the last few minutes.

Step 7: Cool Before Serving

Once baked, allow the cake to cool in the pan for a few minutes before transferring it to a wire rack. Allow it to cool completely before slicing and serving.

old fashioned peanut butter sheet cake 2026 05 31 023407 2
IMAGE: RECIPEDELICIOUS.NET / ALL RIGHTS RESERVED
SAVE NOW

The Old Fashioned Peanut Butter Sheet Cake is an excellent addition to your dessert repertoire. Its simplicity and warmth make it a perfect treat for any occasion. I encourage you to give this recipe a try. Once you’ve baked it, please come back and share your thoughts or any variations you made. Your feedback is always appreciated, and don’t forget to explore similar recipes for more inspiring ideas. Happy baking!

See also  Sweet Creamy Cottage Cheese Desserts
Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
old fashioned peanut butter sheet cake 2026 05 31 023056 683x1024 1

Old Fashioned Peanut Butter Sheet Cake

5 Stars 4 Stars 3 Stars 2 Stars 1 Star No reviews
  • Author: evelyn
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Total Time: 50 minutes
  • Yield: 12-15 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

A warm and comforting dessert made with rich peanut butter, the old-fashioned sheet cake is both easy to make and delicious to share.


Ingredients

Scale
  • 2 cups all-purpose flour
  • 2 cups sugar
  • 1 cup unsweetened peanut butter
  • 1 cup buttermilk
  • 1 cup vegetable oil
  • 4 large eggs
  • 2 teaspoons baking soda
  • 1 teaspoon vanilla extract
  • 1 teaspoon salt

Instructions

  1. Preheat your oven to 350°F (175°C) and grease your sheet cake pan.
  2. In a large mixing bowl, combine the flour, sugar, baking soda, and salt.
  3. Whisk together the peanut butter, buttermilk, vegetable oil, eggs, and vanilla extract in another bowl.
  4. Pour the wet mixture into the dry ingredients and mix gently until just combined.
  5. Pour the batter into your prepared sheet cake pan and smooth the top.
  6. Bake for 30-35 minutes, or until a toothpick comes out clean.
  7. Allow to cool in the pan before transferring to a wire rack to cool completely.

Notes

This cake can be dressed up with frosting or served plain. It’s versatile and perfect for any occasion.


Nutrition

  • Serving Size: 1 piece
  • Calories: 200
  • Sugar: 18g
  • Sodium: 250mg
  • Fat: 10g
  • Saturated Fat: 2g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 28g
  • Fiber: 1g
  • Protein: 4g
  • Cholesterol: 70mg

Leave a Comment

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star