Peanut Butter Fingers

These Peanut Butter Fingers blend the chewiness of a peanut butter cookie base with rich chocolate frosting on top, bringing back sweet memories of your childhood and school lunch treats. This savory-sweet duo will captivate your heart and taste buds, making it a timeless favorite.

This post may contain affiliate links. When you click on these links, I get a small percentage back at no cost to you! For more information see my disclosure policy.

Below you will find tips, tricks and helpful hints for making this recipe including step by step instructions with pictures. If you would like to go directly to the recipe, scroll down to the recipe card or tap "Jump to Recipe" at the top of the page.

Why You'll Love This Recipe

You’re going to love this classic combo of chewy peanut butter and rich chocolate frosting—it’s like a sweet trip down memory lane to those school lunch days. This treat is the perfect mix of comforting flavors and textures, and it’s super easy to make and even easier to devour. Perfect for everyone!

Peanut Butter Oatmeal Cookie Ingredients

*Ingredient amounts are located in the recipe card at the end of this post.

• Butter: Provides a rich flavor and tender texture.
• Sugar & Brown Sugar: Adds sweetness and a hint of molasses depth.
• Eggs: Bind the ingredients together for cohesion.
• Vanilla: Enhances the overall flavor profile.
• Baking Soda: Gives the bars a slight lift.
• Salt: Balances the sweetness and highlights the peanut butter flavor.
• Flour & Oats: Create the classic chewy and hearty texture.
• Cup Peanut Butter: The star ingredient that imparts a rich, nutty taste.

Chocolate Frosting Ingredients

• Butter: The creamy base that binds all the sweet goodness together.
• Milk: Adds smoothness and thins the frosting to the perfect spreading consistency.
• Cocoa Powder: Brings in the rich, deep chocolate flavor that we all love.
• Powdered Sugar: Sweetens the frosting and contributes to its silky texture.

How to Make the Peanut Butter Fingers

[Step 1] In a mixing bowl, whisk together the oats, flour, baking soda, and salt. Set aside.

[Step 2] In a separate mixing bowl or bowl of a stand mixer, cream together the softened butter, 1 cup of peanut butter, sugar, and brown sugar. Mix in the eggs and vanilla. Add the dry ingredients to the butter mixture and beat to combine.

[Step 4] Spray a jelly roll pan with nonstick cooking spray and press the dough evenly, covering the bottom of the pan. Bake the cookie at 350 degrees for 15 minutes. Tip: Spray the back of a spatula with nonstick spray to help the dough from sticking when spreading on the baking pan.

[Step 5] Remove from the oven and drop the remaining peanut butter by teaspoons over the cookie layer. When the peanut butter begins to melt, carefully spread over the cookie.

[Step 6] When the peanut butter has set up, mix together the frosting ingredients until smooth and use an offset spatula to spread over the peanut butter layer. Cut into bars and serve. Tip: Refrigerate the bars before spreading the frosting and before cutting into bars for best results.

How to Store Leftovers

For best results, place the peanut butter squares in an airtight container; this could be a ziplock plastic bag or a container with a tight-fitting lid. If you're layering them, I recommend placing a sheet of parchment paper between layers to prevent sticking.

These buttery, chocolatey treats can sit at room temperature for up to five days, making them perfect for those moments when you crave just a little sweetness. However, if you prefer them a bit firmer, they can be refrigerated for up to two weeks.

Baking Tips & Tricks

• Check your oven temperature: Before you start baking your Peanut Butter Fingers, make sure your oven is calibrated correctly. An oven thermometer can be used to ensure your lunch lady-style Peanut Butter Fingers bakes perfectly every time.
• Proper mixing makes a difference: When combining your butter, peanut butter, sugars, and eggs, take your time to mix these well. Achieving the right consistency in this mixture is crucial for that chewy texture we all love in these bars.
• Spread the frosting evenly: Once your Peanut Butter Fingers have cooled to room temperature, use an offset spatula to spread the chocolate frosting over the cookie, giving you that smooth, creamy layer of chocolate that covers every inch.
• Measuring is key: Accurate measurements of ingredients like peanut butter, powdered sugar, and others ensure your Butter Fingers recipe turns out as delightful as expected. Digital kitchen scales can help you measure everything to the dot, ensuring consistency in every batch you bake.

More Dessert Bars to Try:

• Chocolate Peanut Butter Chex Bars
• Chewy Chocolate Chip Bars
• Cinnamon Roll Blondie Bars
• Caramel Shortbread Bars
• Cream Cheese Sugar Cookie Bars

Did you try this recipe? Make sure to give it a five star ⭐️⭐️⭐️⭐️⭐️ rating below!