Easy Peanut Butter Chocolate Chip Bars
Who doesn’t love the irresistible combination of peanut butter and chocolate? Imagine sinking your teeth into soft, chewy bars that melt in your mouth with every bite. Peanut Butter Chocolate Chip Bars are the ultimate comfort treat, perfect for satisfying those sweet cravings without much fuss.
These delightful bars have roots in the classic peanut butter and chocolate pairing that dates back to the 1920s, when Hershey employee H.B. Reese created the famous Reese’s Peanut Butter Cups. Over the years, this combo has evolved into countless desserts, including these easy peanut butter chocolate chip bars that blend nostalgia with modern simplicity. Whether you’re baking for a family gathering or just a mid-week pick-me-up, they’re a crowd-pleaser.
What makes Peanut Butter Chocolate Chip Bars so appealing? They’re quick to whip up, using pantry staples, and they’re budget-friendly too. Plus, with the protein boost from peanut butter, they offer a bit more substance than your average cookie. If you’re searching for the best peanut butter chocolate chip bars, look no further this recipe delivers on flavor and ease. Let’s dive into how to make these oatmeal peanut butter chocolate chip bars that will become a staple in your kitchen.

Table of Contents
Ingredients for Peanut Butter Chocolate Chip Bars
To create these easy peanut butter chocolate chip bars, you’ll need simple ingredients that come together for maximum flavor. I’ve grouped them for convenience, starting with the wet components and moving to dry.
Wet Ingredients:
- 1/2 cup unsalted butter, melted and slightly cooled
- 1 cup creamy peanut butter
- 1 cup packed light brown sugar
- 1/2 cup granulated sugar
- 2 large eggs, at room temperature
- 2 teaspoons vanilla extract
Dry Ingredients:
- 1 1/2 cups all-purpose flour
- 1 cup old-fashioned rolled oats (for that hearty texture in oatmeal peanut butter chocolate chip bars)
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 1/2 cups semi-sweet chocolate chips
For substitutions, if you have nut allergies, try sunflower seed butter instead of peanut butter—it keeps the bars nut-free while maintaining creaminess. For a gluten-free version, swap the flour for a 1:1 gluten-free blend and ensure your oats are certified gluten-free. Vegans can use flax eggs (1 tablespoon flaxseed meal + 3 tablespoons water per egg) and plant-based butter. Opt for high-quality peanut butter without added sugars for the best peanut butter chocolate chip bars; it enhances the natural nutty taste without overpowering the chocolate.

Equipment and Tools Needed
You won’t need fancy gadgets for these Peanut Butter Chocolate Chip Bars, but a few basics will make the process smoother.
- 9×13-inch baking pan
- Parchment paper or non-stick spray
- Large mixing bowl and whisk or electric mixer
- Rubber spatula for folding in chocolate chips
- Measuring cups and spoons
If you don’t have a 9×13 pan, a slightly smaller one like 8×12 will work but may require a few extra minutes of baking time. No electric mixer? A sturdy wooden spoon does the trick for these easy peanut butter chocolate chip bars just mix until combined to avoid tough bars.
Step-by-Step Instructions
Making the best peanut butter chocolate chip bars is straightforward, broken down into these detailed steps. Preheat your oven to 350°F (175°C) and line your baking pan with parchment paper for easy removal.
- Start by melting the butter in a microwave-safe bowl for about 30-45 seconds, stirring halfway. Let it cool slightly to prevent cooking the eggs later.
- In a large mixing bowl, combine the melted butter, peanut butter, brown sugar, and granulated sugar. Whisk vigorously until smooth and creamy, about 1-2 minutes. This creates the base for your oatmeal peanut butter chocolate chip bars.
- Crack in the eggs one at a time, whisking well after each addition. Stir in the vanilla extract until fully incorporated. Look for a glossy, uniform mixture that’s your cue it’s ready.
- In a separate bowl, sift together the flour, oats, baking soda, and salt. This ensures even distribution and prevents lumps in your easy peanut butter chocolate chip bars.
- Gradually add the dry ingredients to the wet mixture, stirring with a spatula until just combined. Avoid overmixing to keep the bars tender.
- Fold in 1 cup of the chocolate chips gently. Reserve the remaining 1/2 cup for topping these will create those melty pools on the surface.
- Spread the batter evenly into the prepared pan using the spatula. It might be thick, so press it down firmly for uniform baking.
- Sprinkle the reserved chocolate chips over the top, pressing them lightly into the batter. This step adds extra chocolatey goodness to the best peanut butter chocolate chip bars.
- Bake in the preheated oven for 22-28 minutes. Check at 22 minutes the edges should be golden, and the center slightly soft for chewy bars. A toothpick inserted in the middle should come out with a few moist crumbs.
- Remove from the oven and let cool in the pan on a wire rack for at least 30 minutes. This helps them set without falling apart.
- Once cooled, lift the bars out using the parchment overhang and transfer to a cutting board.
- Slice into 16-20 squares, depending on your preferred size. wipe the knife clean between each cut.
These steps ensure foolproof results every time. If your oven runs hot, reduce the temperature by 25°F to prevent overbrowning.

Expert Tips and Variations
Want to elevate your Peanut Butter Chocolate Chip Bars? Here are some pro tips to achieve bakery-quality results.
- Use room-temperature eggs for better emulsion and fluffier texture.
- For chewier bars, underbake slightly and let them cool completely the residual heat finishes the cooking.
- Avoid common mistakes like overmixing the dough, which can lead to tough bars; stop when streaks of flour disappear.
- Add a pinch of cinnamon or espresso powder to the dry ingredients for depth in your oatmeal peanut butter chocolate chip bars.
- Variation: Stir in chopped nuts like pecans for crunch, or swirl in extra peanut butter on top before baking.
- For gluten-free tweaks, as mentioned, and try dark chocolate chips for a less sweet, antioxidant-rich option.
- Store-bought peanut butter works, but homemade adds a fresh twist grind roasted peanuts in a food processor.
Nutritional Information
Each serving of these Peanut Butter Chocolate Chip Bars (based on 16 servings) packs a satisfying punch. Approximately 250 calories per bar, with 14g total fat (5g saturated), 28g carbohydrates (including 2g fiber and 18g sugars), and 6g protein. Sodium clocks in at around 150mg, with small amounts of iron and potassium.
Peanut butter brings healthy fats, protein, and vitamins like E and B6, supporting heart health and energy levels. Chocolate chips add antioxidants from cocoa, which may help reduce inflammation. Oats contribute fiber for digestion. Note: Nutritional values can vary based on ingredients; consult a professional for personalized advice, especially if you have dietary restrictions. These bars are a treat, so enjoy in moderation as part of a balanced diet.
Storage and Reheating Instructions
Leftover Peanut Butter Chocolate Chip Bars? No problem they store well for later enjoyment.
To keep them fresh, place in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to a week; the chill firms them up nicely.
Freezing is ideal for batch baking wrap individual bars in plastic wrap, then store in a freezer bag for up to 3 months. Thaw at room temperature or in the fridge overnight.
For reheating, pop a bar in the microwave for 10-15 seconds to restore that gooey texture. Avoid overheating to prevent drying out. These easy peanut butter chocolate chip bars taste even better the next day as flavors meld.
Serving Suggestions

Serve your Peanut Butter Chocolate Chip Bars warm with a scoop of vanilla ice cream for a decadent dessert. They pair wonderfully with fresh berries or a dollop of whipped cream for contrast.
For sides, try them alongside a fruit salad, yogurt parfait, or even a cheese platter for a sweet-savory twist. Beverage-wise, a cold glass of milk enhances the chocolate-peanut butter vibe, or go for coffee to cut the sweetness.
Presentation tip: Stack them on a platter with a drizzle of melted chocolate and chopped peanuts as garnish. These oatmeal peanut butter chocolate chip bars shine at potlucks or as after-school snacks.
Frequently Asked Questions
Curious about Peanut Butter Chocolate Chip Bars? Here are answers to common queries.
Can I use crunchy peanut butter?
Yes, it adds texture—swap directly for creamy in these best peanut butter chocolate chip bars.
How do I make them gluten-free?
Use gluten-free flour and oats; the recipe adapts easily without changing taste much.
What if my bars are too crumbly?
Ensure proper measuring—too little moisture can cause this. Add a tablespoon of milk if the batter seems dry.
Can I add other mix-ins?
Absolutely! Try white chocolate chips or dried cranberries for variety in easy peanut butter chocolate chip bars.
Are these bars kid-friendly?
Definitely they’re simple to make and eat, plus the oatmeal peanut butter chocolate chip bars version sneaks in some whole grains.
How long do they take to bake?
About 22-28 minutes; watch for golden edges to avoid overbaking.
Can I double the recipe?
Yes, use a larger pan or two batches for bigger crowds.
In summary, Peanut Butter Chocolate Chip Bars are a quick, delicious way to enjoy the timeless peanut butter-chocolate duo. With their chewy texture, simple prep, and versatile twists, they’re ideal for any occasion. Whether you’re baking the best peanut butter chocolate chip bars for a treat or sharing oatmeal peanut butter chocolate chip bars with friends, this recipe delivers every time.







