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Instructions
1. Prepare the Cake Batter
- Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan.
- Mix Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
- Cream Butter and Sugars: In a large mixing bowl, beat together the softened butter, granulated sugar, and brown sugar until light and fluffy. This should take about 2-3 minutes.
- Add Peanut Butter: Mix in the peanut butter until well combined.
- Incorporate Eggs and Vanilla: Add the eggs one at a time, mixing well after each addition. Then, stir in the vanilla extract.
2. Combine and Bake
- Combine Wet and Dry Ingredients: Gradually add the dry ingredients to the wet mixture, alternating with the buttermilk. Begin and end with the dry ingredients, mixing until just combined.
- Pour into Pan: Pour the batter into the prepared baking pan, spreading it evenly.
- Bake: Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted in the center comes out clean. Allow the cake to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely.
3. Make the Peanut Butter Frosting
- Cream Butter and Peanut Butter: In a medium bowl, beat together the softened butter and peanut butter until smooth and creamy.
- Add Powdered Sugar: Gradually add the powdered sugar, mixing well after each addition.
- Adjust Consistency: Add milk and vanilla extract, and continue to mix until the frosting reaches your desired consistency. If it’s too thick, add a little more milk; if too thin, add more powdered sugar.
4. Frost the Cake
- Frost the Cool Cake: Once the cake is completely cooled, spread the peanut butter frosting evenly over the top. Use a spatula or knife for a smooth finish.
5. Serve and Enjoy
- Slice and Serve: Cut the cake into squares and serve. Enjoy the rich flavors of this delicious Peanut Butter Sheet Cake!
Tips for the Perfect Peanut Butter Sheet Cake
- Use Room Temperature Ingredients: Ensure your butter, eggs, and buttermilk are at room temperature for a smoother batter.
- Don’t Overmix: Mix the batter just until combined to keep the cake light and fluffy.
- Decorate: For added flair, consider garnishing with chopped peanuts, chocolate shavings, or a drizzle of melted chocolate on top of the frosting.
- Storage: Store leftover cake in an airtight container at room temperature for up to 3 days or in the refrigerator for up to a week.
Health Considerations
- Moderation: While delicious, this cake is rich and should be enjoyed in moderation, especially for those watching their sugar intake.
- Nut Allergies: If you or your guests have nut allergies, consider substituting almond butter or sunflower seed butter, keeping in mind the flavor profile will change.
Conclusion
Peanut Butter Sheet Cake with Peanut Butter Frosting is a dream come true for peanut butter lovers. Its moist, fluffy texture paired with the creamy, decadent frosting creates a dessert that’s hard to resist. Perfect for any occasion, this cake is sure to be a hit among family and friends. So gather your ingredients, follow these simple steps, and indulge in the delightful flavors of homemade Peanut Butter Sheet Cake!