Reese’s Chocolate Peanut Butter Bars are one of those gooey desserts everyone loves! I made this recipe a couple of days ago for a big shindig at church and everyone loved it. It’s a delectable recipe that I found last summer and finally got around to making myself.

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It has a peanut butter and oatmeal crust and topping with a chocolate filling using sweetened condensed milk.  It is topped with Reese’s pieces miniature candies. Oh, my! It is fabulous. I made a few changes to the recipe that I think help the presentation and a few other minor changes. But the basic recipe remains intact.

I am warning you in advance that Reese’s Chocolate Peanut Butter Bars are gooey because of the chocolate filling in the middle. But it is worth making. Each bite is rich, decadent and an explosion of flavor in your mouth.

Plus it has the crunch from all the Reese’s candies which make it extraordinary. If you’re looking for a wonderful chocolate and peanut butter dessert, then Reese’s Chocolate Peanut Butter Bars has it all! Your friends and family will love these delicious brownies.

When I initially posted this recipe in October 2012, it was still the early days of my blog so I was using an iPhone for a camera. The pictures were not as clear as I would have liked so I remade this recipe (June 2016) for some friends.

They recently took in a newborn from a cousin who cannot care for the child and are basically starting over. I took over a meal including these delicious bars for dessert. They are ooey, gooey and delicious and if you love chocolate and peanut butter in combination, you’ll be ecstatic once your teeth sink into one of these amazing treats.

I’ve updated the recipe again, circa February 2020. This time I made these fantastic bars for a funeral meal. A gal at our church lost her grandma. John and I work with her on Sunday nights with the college kids. I helped with the food including Roasted Chicken with Rosemary, Lemon Pepper Chicken and these outrageous treats. They are ALWAYS worth making. 🙂

We love these delicious Reese’s Chocolate and Peanut Butter Bars!

Reese’s Chocolate Peanut Butter Bars are amazing. I chose to put most of the candies on top rather than underneath the topping like the original recipe called for.

Reese’s Chocolate Peanut Butter Bars are great treats for Halloween or Christmas baking.

These outrageous cookies are terrific for tailgating parties, potlucks or any get-together with friends.

Here’s what I did.

I used these ingredients for the oatmeal crust and crumb topping.

Place softened butter in mixing bowl. Add peanut butter, brown sugar, eggs, vanilla extract, salt and a heaping teaspoonful of baking soda. I add the leavening ingredients now rather than later to make sure they get incorporated into the mixture completely.

Mix ingredients with an electric mixer or whisk until well combined.

Add oatmeal. I prefer using the old-fashioned whole oats. Add the flour. Make sure you always use UNBLEACHED flour for making cookies or cakes. Bleached flour, due to the way it is processed, will toughen baked goods.

Stir flour and oatmeal gently into mixture to combine. I don’t use electric mixers at this point for cookies or cakes so the texture doesn’t get tough. 

Reserve two cups of the oatmeal/peanut butter mixture and set aside for topping.

Press the rest into a greased 9×13″ glass baking dish.

I used these ingredients for the chocolate filling layer.

Begin making chocolate sauce layer: Melt butter in saucepan over low heat. Add cocoa and sugar.

Stir until butter is melted and ingredients are well combined.

Add a can of sweetened condensed milk. 

Cook slowly until mixture thickens – this will take about 5 minutes. The mixture will thicken like chocolate pudding. Remove from heat.

Add vanilla.

Stir again to combine.

Spread chocolate sauce over top of peanut butter-oatmeal crust.

Sprinkle about 3/4 cup Reese’s candies over top of the chocolate layer.

Crumble reserved two cups of peanut butter-oatmeal dough over top of the Reese’s pieces.

Sprinkle the remaining Reese’s pieces over top of the batter in baking dish.

Bake at 350 for 25-30 minutes or until done. I tested with a toothpick to ensure doneness. Be careful you don’t overbake.

Reese’s Chocolate Peanut Butter Bars are a decadent dessert that everyone loves.

If you love chocolate, if you love oatmeal, if you love peanut butter, and if you love Reese’s candies, you will become addicted to this dessert! 

Reese’s Chocolate Peanut Butter Bars will knock your socks off!

Have a little bit of brownie with your Reese’s Peanut Butter Candies!

Here’s the recipe.

REESE’S® CHOCOLATE PEANUT BUTTER BARS

(Recipe adapted from Random Sweetness Baking)

Reese's® Chocolate Peanut Butter Bars

Teresa Ambra

Reese's Chocolate Peanut Butter Bars are made with an oatmeal-peanut butter crust and streusel topping. They have a luscious chocolate-condensed milk layer in the middle. Then they're topped with Reese's miniature peanut butter candies. This is an incredibly scrumptious treat that's great for Halloween or holiday baking, tailgating parties, potlucks or grilling out with friends. If you enjoy Oatmeal Cookies you'll love the additions of peanut butter, chocolate and Reese's Peanut Butter Candies. They'll knock your socks off!

4.50 from 2 votes

Print Recipe Pin Recipe

Prep Time 30 minutes mins

Cook Time 25 minutes mins

Total Time 55 minutes mins

Course Cookies, Brownies and Bars, Dessert

Cuisine American

Servings 24

Calories 433 kcal

Equipment

• 1 medium sauce pan
• 1 large mixing bowl
• 1 electric mixer
• 1 9x13" glass baking dish
• 1 spatula
• measuring cups
• measuring spoons

Ingredients

  

1x2x3x

PEANUT BUTTER LAYER:

• 3/4 cup unsalted butter softened
• 3/4 cup peanut butter (You can use either crunchy or creamy peanut butter)
• 2 cups brown sugar packed, light or dark
• 2 large eggs
• 1 tsp. vanilla extract
• 2 1/2 cups old-fashioned oatmeal
• 2 1/2 cups UNBLEACHED all-purpose flour (bleached flour toughens baked goods)
• 1 tsp. baking soda
• 1/2 tsp. sea salt

CHOCOLATE LAYER:

• 1/2 cup unsalted butter (1 stick)
• 2/3 cup unsweetened cocoa
• 1/3 cup granulated sugar
• 14 oz. can sweetened condensed milk NOT evaporated milk
• 1 1/2 tsp. vanilla extract
• 15 oz. pkg. Reese's mini pieces peanut butter candies

Instructions

 

PEANUT BUTTER LAYER:

• Preheat oven to 350°.
• Beat 3/4 cup softened butter, peanut butter, brown sugar, eggs, vanilla, salt and baking soda with an electric mixer until well blended.
• Stir in flour and oats.
• Do not beat or mixture will become tough.
• Batter will resemble cookie dough.
• Set 2 cups of the batter aside.
• Press remaining dough evenly into a greased 13×9” glass baking dish

CHOCOLATE LAYER:

• Melt 1/2 cup butter in a saucepan over low heat.
• Stir in cocoa and granulated sugar.
• Add 1 can sweetened condensed milk; stirring constantly over low heat until smooth and thick.
• This will take about 5 minutes. (The mixture will thicken like chocolate pudding).
• Remove from heat and stir in 1 1/2 teaspoons of vanilla extract.
• Spread chocolate mixture evenly over oatmeal dough in the pan.
• Sprinkle about 3/4 cup of the Reese’s candies over the chocolate.
• Crumble the reserved two cups of oatmeal/peanut butter dough over the candies.
• Sprinkle the remaining Reese’s candies over top of the dough.
• Bake 25-30 minutes or until top is lightly brown.
• Cool completely on a wire rack.
• Cut into bars.

Notes

NOTE: The original recipe calls for all the Reese's candies to be sprinkled over the chocolate layer, but I wanted the top to be pretty so I only put a token amount on top of the chocolate and added the rest to the top of the brownie.

 

NOTE: I cooled the bars one hour in the pan. Then I put them in the refrigerator for about 1 1/2 hours to make for easier cutting.

 

Recipe adapted from Random Sweetness Baking.

 

^© Can’t Stay Out of the Kitchen

Nutrition

Calories: 433kcalCarbohydrates: 58gProtein: 7gFat: 21gSaturated Fat: 11gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gTrans Fat: 0.4gCholesterol: 49mgSodium: 178mgPotassium: 208mgFiber: 3gSugar: 42gVitamin A: 402IUVitamin C: 1mgCalcium: 99mgIron: 2mg

Keyword brownie, chocolate, chocolate chips, chocolate dessert, cookie, dessert, peanut butter, Reese's peanut butter cups

Tried this recipe?Let us know how it was!

Don’t Reese’s Chocolate Peanut Butter Bars look scrumptious?

It’s really hard to stop at just one! They are ooey, gooey and delicious.

Reese’s Chocolate Peanut Butter Bars are great for holiday baking.

You may also enjoy these delicious recipes!

Reese’s Peanut Butter Candy Chocolate Cookies

Reese’s Peanut Butter Bars

Reese Cup Brownies

Reese’s® Chocolate Peanut Butter Bars

Teresa Ambra

Reese’s Chocolate Peanut Butter Bars are made with an oatmeal-peanut butter crust and streusel topping. They have a luscious chocolate-condensed milk layer in the middle. Then they’re topped with Reese’s miniature peanut butter candies. This is an incredibly scrumptious treat that’s great for Halloween or holiday baking, tailgating parties, potlucks or grilling out with friends. If you enjoy Oatmeal Cookies you’ll love the additions of peanut butter, chocolate and Reese’s Peanut Butter Candies. They’ll knock your socks off!

4.50 from 2 votes

Print Recipe Pin Recipe

Prep Time 30 minutes mins

Cook Time 25 minutes mins

Total Time 55 minutes mins

Course Cookies, Brownies and Bars, Dessert

Cuisine American

Servings 24

Calories 433 kcal

Equipment

• 1 medium sauce pan
• 1 large mixing bowl
• 1 electric mixer
• 1 9×13" glass baking dish
• 1 spatula
• measuring cups
• measuring spoons

Ingredients

  

1x2x3x

PEANUT BUTTER LAYER:

• 3/4 cup unsalted butter softened
• 3/4 cup peanut butter (You can use either crunchy or creamy peanut butter)
• 2 cups brown sugar packed, light or dark
• 2 large eggs
• 1 tsp. vanilla extract
• 2 1/2 cups old-fashioned oatmeal
• 2 1/2 cups UNBLEACHED all-purpose flour (bleached flour toughens baked goods)
• 1 tsp. baking soda
• 1/2 tsp. sea salt

CHOCOLATE LAYER:

• 1/2 cup unsalted butter (1 stick)
• 2/3 cup unsweetened cocoa
• 1/3 cup granulated sugar
• 14 oz. can sweetened condensed milk NOT evaporated milk
• 1 1/2 tsp. vanilla extract
• 15 oz. pkg. Reese’s mini pieces peanut butter candies

Instructions

 

PEANUT BUTTER LAYER:

• Preheat oven to 350°.
• Beat 3/4 cup softened butter, peanut butter, brown sugar, eggs, vanilla, salt and baking soda with an electric mixer until well blended.
• Stir in flour and oats.
• Do not beat or mixture will become tough.
• Batter will resemble cookie dough.
• Set 2 cups of the batter aside.
• Press remaining dough evenly into a greased 13×9” glass baking dish

CHOCOLATE LAYER:

• Melt 1/2 cup butter in a saucepan over low heat.
• Stir in cocoa and granulated sugar.
• Add 1 can sweetened condensed milk; stirring constantly over low heat until smooth and thick.
• This will take about 5 minutes. (The mixture will thicken like chocolate pudding).
• Remove from heat and stir in 1 1/2 teaspoons of vanilla extract.
• Spread chocolate mixture evenly over oatmeal dough in the pan.
• Sprinkle about 3/4 cup of the Reese’s candies over the chocolate.
• Crumble the reserved two cups of oatmeal/peanut butter dough over the candies.
• Sprinkle the remaining Reese’s candies over top of the dough.
• Bake 25-30 minutes or until top is lightly brown.
• Cool completely on a wire rack.
• Cut into bars.

Notes

NOTE: The original recipe calls for all the Reese’s candies to be sprinkled over the chocolate layer, but I wanted the top to be pretty so I only put a token amount on top of the chocolate and added the rest to the top of the brownie.

 

NOTE: I cooled the bars one hour in the pan. Then I put them in the refrigerator for about 1 1/2 hours to make for easier cutting.

 

Recipe adapted from Random Sweetness Baking.

 

^© Can’t Stay Out of the Kitchen

Nutrition

Calories: 433kcalCarbohydrates: 58gProtein: 7gFat: 21gSaturated Fat: 11gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gTrans Fat: 0.4gCholesterol: 49mgSodium: 178mgPotassium: 208mgFiber: 3gSugar: 42gVitamin A: 402IUVitamin C: 1mgCalcium: 99mgIron: 2mg

Keyword brownie, chocolate, chocolate chips, chocolate dessert, cookie, dessert, peanut butter, Reese’s peanut butter cups

Tried this recipe?Let us know how it was!