Peanut Butter M&M’s Cake
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Who doesn’t love a slice of cake that combines the rich, creamy flavor of peanut butter with the colorful crunch of M&M’s? The Peanut Butter M&M’s Cake is not only a treat for your taste buds, but it’s also a breeze to make, making it ideal for both novice bakers and seasoned pros alike. Whether you’re celebrating a special occasion or just want to indulge, this cake offers a delightful spin that is sure to impress your family and friends.
Recipe Information
Prep Time: 20 minutes
Cook Time: 35 minutes
Total Time: 55 minutes
Servings: 12
Difficulty Level: Easy
Nutrition Information (per serving)
Calories: 350
Protein: 7g
Carbohydrates: 45g
Fat: 15g
Fiber: 1g
Sugar: 24g
Sodium: 200mg
Why Make Peanut Butter M&M’s Cake
Peanut Butter M&M’s Cake is the perfect blend of taste and fun. This cake not only delivers a decadent flavor with its peanut butter base, but it also brings a splash of color and excitement with the added M&M’s. The cake can easily be customized to fit any celebration, making it versatile enough for birthdays, parties, or just a casual dessert at home. Plus, its simple ingredients make it an accessible choice for busy days when you crave something sweet without the fuss.
How to Make Peanut Butter M&M’s Cake Step by Step
Ingredients
2 cups all-purpose flour, 1 1/2 teaspoons baking powder, 1/2 teaspoon baking soda, 1/4 teaspoon salt, 1/2 cup unsalted butter, softened, 1 cup creamy peanut butter, 1 cup granulated sugar, 1/2 cup brown sugar, packed, 2 large eggs, 1 teaspoon vanilla extract, 1 cup buttermilk, 1 cup M&M’s, plus extra for topping.
Directions
- Preheat oven to 350°F (175°C). Grease and flour two 8-inch round cake pans.
- In a medium bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
- In a large mixing bowl, cream the softened butter and peanut butter until smooth.
- Gradually add granulated sugar and brown sugar, beating until light and fluffy.
- Beat in eggs one at a time, then stir in vanilla extract.
- Alternately add the flour mixture and buttermilk to the peanut butter mixture, beginning and ending with the flour mixture. Mix until just combined.
- Gently fold in 1 cup of M&M’s.
- Divide the batter evenly between the prepared cake pans and smooth the tops.
- Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Allow cakes to cool in the pans for 10 minutes, then turn out onto wire racks to cool completely.
- Once cooled, frost with your favorite frosting and sprinkle extra M&M’s on top for decoration.

How to Serve Peanut Butter M&M’s Cake
Serve this delightful Peanut Butter M&M’s Cake at room temperature for maximum flavor. Pair it with a scoop of vanilla ice cream for a delightful dessert experience. Alternatively, a fresh fruit salad can offer a refreshing balance to the rich cake, making it a hit at gatherings.
How to Store Peanut Butter M&M’s Cake
Store any leftover Peanut Butter M&M’s Cake in an airtight container at room temperature for up to 3 days. For longer storage, you can refrigerate the cake for up to a week. To reheat, simply warm a slice in the microwave for about 15 seconds. You can also freeze the unfrosted cake layers for up to three months, wrapping them tightly in plastic wrap before placing them in a freezer-safe container.
Expert Tips for Cooking Peanut Butter M&M’s Cake
- Use room-temperature ingredients for easier mixing and a smoother batter.
- Don’t overmix once the flour is added; this helps keep the cake light and moist.
- Feel free to substitute crunchy peanut butter for added texture.
- Experiment with chocolate frosting for a richer flavor contrast.
- Add some chopped peanuts for an extra crunch in the batter or as decoration.
Delicious Variations of Peanut Butter M&M’s Cake
For a fun twist, consider adding a hint of cinnamon for warmth and depth. Alternatively, you can incorporate other candies or nuts into the batter to give new flavors. If you want a citrusy touch, a splash of orange or lemon zest in the batter can brighten the flavor profile while still complementing the peanut butter.
Peanut Butter M&M’s Cake is not only delicious, but it’s also fun to make and share. Its unique flavor combination and colorful presentation mean it’s always a crowd-pleaser. Try your hand at this cake, and enjoy a delightful slice that’s both simple and satisfying!







