Chocolate Peanut Butter Cake in a Mug


This is the kind of recipe that will make you want to leave your boyfriend if you have one.

A "single-serving" chocolate cake that can be made in your microwave, tastes like a Reeses peanut butter cup, and is under 150 calories for the entire recipe: https://lett-trim.today/2012/10/08/chocolate-peanut-butter-cake-in-a-mug/

Or at least lock him outside for an hour. A girl needs her space when chocolate and peanut butter are involved.

No boys allowed.

1 Minute Chocolate Peanut Butter Cake

Above, topped with Healthy Coffee Fudge Frosting.

Peanut Butter Cake in a Mug

Chocolate Peanut Butter Mug Cake

(single-serving)

Adapted from One-Minute Chocolate Mug Cake.

    • 1 tablespoon plus 2 tsp cocoa powder (8g)
    • 3 tablespoons powdered peanut butter (PB2 or Betty Lou’s) (For substitutions, see “nutrition facts” link below) (18g)
    • scant 1/16 tsp salt
    • 1 tsp sugar or xylitol (omit if you like bitter chocolate cake) (4g)
    • 1/4 tsp baking powder
    • pinch stevia OR 1 additional tablespoon sugar
    • 2 tsp coconut or veg oil, or mashed banana or applesauce (I personally don’t like the fat-free option and recommend the oil, but I’m adding the option because I know many of you don’t mind the taste/texture of the lower-fat version.) (8g)
    • 3 tablespoons milk of choice (45g)
    • 1/4 tsp pure vanilla extract

Mug Cake Recipe: Combine dry ingredients and mix very, very well. Add liquid, stir, then transfer to a little dish, 1-cup ramekin, or even a coffee mug. If using the microwave: cook 1 minute 25 seconds (time may vary, depending on your microwave’s wattage). If you don’t want to eat it straight out of the dish, be sure to spray your dish first (and then wait for the cake to cool before trying to remove it). You can cook this in an oven if you prefer, but you’ll have to experiment to find the correct amount of time.

View Mug Cake Nutrition Facts

1 Minute Chocolate Peanut Butter Cake

Peanut Butter Cake

Were you friends with boys growing up? Or did you think boys had cooties?

When I was really little, I was friends with all the boys. They had better toys! Swords and transformers and legos beat playing House any day. I never even heard the idea boys had cooties until third grade, and by then I already knew that wasn’t true.

LINK OF THE DAY:

mothers day food

Flourless Chocolate Chip Cookies

Meet Katie

Chocolate Covered Katie is one of the top 25 food websites in America, and Katie has been featured on The Today Show, CNN, Fox, The Huffington Post, and ABC’s 5 O’clock News. Her favorite food is chocolate, and she believes in eating dessert every single day.

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221 Comments

  1. Michelle says:

    First of all, your mug brownies have changed my life! Not even joking! I am a high school student, and last year, I had lunch with my lifelong bestie, Ruth. This year, we have separate lunches and no classes together! Enter: Mug Brownie Mondays. Every Monday morning, we bring our ingredients, and mix them up in mugs, cook them in the school microwave, and eat them as we head off to first hour!

    Also, my tomboy streak didn’t wear off until I was 14! In eighth grade, I was actually the only girl baritone in choir, and the other baris pretty much became my brothers. (And I was their brother, too.) I also remember crying in first grade PE because the girls had to jump-rope while the boys played dodgeball. 🙁

  2. meghan says:

    How can I double this recipe? If I try to just double everything it comes out a muddy (yet tasty) mess. Would love for it to come out like cake when doubled!

  3. Sweetavril says:

    I’m eating it right now. It’s delicious!!! Very quick and easy to make.
    I didn’t have powdered PB do I sub with almond powder and it turned great. Also I put 1/2 tbs sugar only and for the oil “j’ai coupé la poire en deux!” (don’t know the expression in english for this) so I put 1 tbs olive oil and 1 tbs applesauce since I didn’t want my breakfast to have the strong flavour of olive oil.
    I also added 1 tbs of PB otherwise it wouldn’t be a chocolate PB mug cake 😀

    Thanks Katie!

  4. Daddy Jones says:

    I’d love to put chocolate all over Katie. All natural and would taste amazing I’m sure!

  5. Lori says:

    This looks really good, but I don’t have any PB2. Is it possible to sub peanut butter in place of the PB2 and oil?

    Been a visitor to your blog for nearly three years. It just keeps getting better! Love your recipes!

    1. Lori says:

      Nevermind. I found my answer in the rest of the comments! 🙂

  6. Vaibhavi says:

    Hi Katie! I’m a 14 year old girl with allergies to gluten, eggs, and oats. I found your website recently and made the coconut crack bars and this cake. They turned out amazing!! Extremely easy to make, and I don’t have to sacrifice taste. Thank you so much. 😀

  7. Vaibhavi says:

    Hi Katie,
    I have a friend who is allergic to peanuts, and I want to make her a cake for her birthday. Could I substitute out the powdered peanut butter for more cocoa powder to make a plain chocolate cake? Thanks!

  8. shea says:

    Thanks for the recipe! I just made this….I’ve been on a 1200 calorie a day diet since Christmas, and now that I have reached my goal weight I am ready for some low cal treats! I made just the cake, no frosting. It was great except…..1 tsp of sugar is not enough. I don’t know if Stevia is sweeter or what, but I only have plain old sugar. It didn’t have hardly any sweetness to it. Although now I see you add a second tsp of sugar as a second ingredient, that confused me and I only added one. I’ll try it with two! Thanks again.

  9. Elena says:

    Just made this and oh so good!
    I used only stevia to sweeten, and it still tasted fine! May try erythritol next time. I did a tiny drizzle of almond oil for “fat” and nothing besides that. Probably less than 1 tsp, and I didn’t use any banana/applesauce–the texture was still super fluffy!
    Might make this for breakfast tomorrow! I’m going to try adding some protein powder and see what happens.

  10. Jan says:

    Oh my goodness! How could you do this to me?!? lol This cake is soooooo good! Just made this for my family and me for an after dinner desert and everyone loves it! Thank you! I did use Bob’s Red Mill almond meal/flour in place of the powdered peanut butter and just added like a tablespoon or so of regular peanut butter so I would still have the peanut butter and chocolate thing. Worked great! Thanks