Why Peanut Butter And Chocolate Make A Perfect Combo

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Peanut butter and chocolate is an iconic duo, a popular and temptingly delicious marriage of flavors. Many of us were first introduced to it as children when we took an eye-opening bite of a Reese's peanut butter cup. The candy has been a nearly century-long gateway to the taste combination since Hershey's worker H.B. Reese first made the treats in his basement in 1928. Now, we enjoy the flavor combo in many different forms, and it even has its own National Peanut Butter and Chocolate Day on July 23. So, what makes it special?

"Most peanut butter has salt in it (that's what makes it yummy) and that salt makes the sweetness in chocolate taste brighter and more defined," Odette D'Aniello, baking expert and CEO at Dragonfly Cakes, told Food Republic. "Chocolate, and particularly darker chocolate, has natural bitterness from cocoa solids. Peanut butter is high in fat, and that richness softens the bitterness." Another element she described also contributes to the complementary savory and sweet features. "Both peanuts and cocoa are roasted ingredients ... [which] gives them those warm, toasty, slightly caramelized notes."

D'Aniello highlighted that while chocolate often offers a crisp "snap" and a smooth melt, peanut butter provides a dense, lingering richness. That interplay prevents the duo from feeling one-dimensional and keeps the palate engaged. Chunky peanut butter would add another crunchy textural layer. The cocoa butter and the peanuts' oil also play a role as fats that linger in the mouth a little longer as they spread flavor.

With so many varieties of chocolate and peanut butter available, choosing the right pairing is essential for a balanced dessert. "I prefer natural peanut butter which is just peanuts and salt so I can control the sweetness," Odette D'Aniello shared. "Fresh-ground peanut butter has the best roasted flavor but tends to separate after sitting for a while." As for its chocolate partner, she likes using a darker kind with 60% to 70% cocoa. "It's not too sweet, so the peanut butter doesn't get lost," she explained — which is why the pairing works so well in treats like these peanut butter and dark chocolate thumbprint cookies.

Confections made with milk chocolate, like Reese's, lean toward a richer, sugar-forward profile. Similarly, white chocolate doesn't contain cocoa solids, so it offers a mellow, creamy experience that lacks bitter notes. A similar flavor blend can also be created with other nut butters, like almond or cashew.

Among the peanut butter and chocolate treats you can make yourself are cakes, cupcakes, brownies, and cookies; others include ice cream, milkshakes, fudge, truffles, and homemade peanut butter cups. If you want to go the store-bought route, there are also spreads, like Jif's Peanut Butter & Chocolate, and there's even a Reese's popcorn featuring the two flavors.