Irresistibly Gooey Keto Peanut Butter Pecan Mug Cake (Ready in 5 Minutes!)

Peanut Butter Pecan Mug Cake
Peanut Butter Pecan Mug Cake

Thank you so much for stopping by, friend! Today, I’m sharing a warm, gooey, and oh-so-comforting single-serve keto peanut butter pecan mug cake that’s perfect when those sweet cravings hit. It’s creamy, nutty, and ready in just minutes—like a hug in a mug. If you’re following a keto lifestyle (or just love peanut butter as much as I do), this recipe is going to be your new best friend.

I’m thrilled to share this recipe because it’s been my go-to treat after long days. My nonna used to say, “sometimes the smallest treats bring the biggest smiles”—and this mug cake does exactly that!

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Overview of Recipe Content

This keto mug cake is:

  • Perfect for a quick dessert, late-night snack, or even a guilt-free breakfast.
  • Warm, gooey, and lightly nutty from roasted pecans.
  • Rich in flavor thanks to sugar-free peanut butter and vanilla.
  • Low-carb, gluten-free, and keto-approved!

Taste profile: Buttery, nutty, and slightly sweet with a tender crumb. The pecans add a subtle crunch, while the peanut butter keeps everything creamy and indulgent.

Nutritional Benefits:

  • High in protein and healthy fats.
  • Low-carb and sugar-free.
  • Keeps you full and satisfied without the sugar crash.

Ingredients You’ll Need:

  • 2 tbsp Peanut Butter (sugar-free)
  • 2 tbsp Almond Flour
  • 1 tbsp Erythritol (or preferred sweetener)
  • 1/2 tsp Baking Powder
  • 1 Egg
  • 1 tbsp Heavy Cream
  • 1 tbsp Pecans (chopped)
  • 1/4 tsp Vanilla Extract
  • Pinch of Salt

Tools Needed:

  • Microwave-safe mug (12 oz or larger)
  • Fork or mini whisk
  • Measuring spoons

Substitutions & Additions:

  • Swap pecans with walnuts or sugar-free chocolate chips.
  • Replace erythritol with monk fruit or stevia.
  • For a dairy-free version, use coconut cream instead of heavy cream.

How to Make Keto Peanut Butter Pecan Mug Cake

  1. In a microwave-safe mug, whisk together the egg, peanut butter, and heavy cream until smooth.
  2. Add almond flour, erythritol, baking powder, vanilla extract, and a pinch of salt. Mix until combined.
  3. Fold in chopped pecans.
  4. Microwave on high for 60–75 seconds, depending on your microwave’s power.
  5. Let it cool for a minute before digging in (trust me, it’s hot!).

Pro tip: If you like extra gooey centers, microwave for the shorter time.

What to Serve with Keto Peanut Butter Pecan Mug Cake

  • A drizzle of sugar-free chocolate syrup.
  • A dollop of whipped cream.
  • A scoop of keto vanilla ice cream for an indulgent treat.
  • Pair with bulletproof coffee for the ultimate keto dessert moment.

Tips for Making It Perfect

  • Use a larger mug to prevent overflow.
  • Don’t overcook—it’s better slightly underdone than rubbery.
  • Whisk well to avoid clumps of flour.
  • Toast the pecans beforehand for deeper flavor.

Storage Instructions

  • Best enjoyed fresh, straight out of the microwave.
  • Can be covered and refrigerated for up to 2 days. Reheat for 15–20 seconds.
  • Not freezer-friendly (the texture changes).

General Information

This mug cake fits perfectly into the keto dessert world, where indulgence meets low-carb creativity. Mug cakes became especially popular during the early 2000s for their convenience, but this keto-friendly version proves you don’t need sugar to enjoy a comforting treat.

Frequently Asked Questions

1. Can I make this without eggs?
Yes! Substitute 1 tbsp ground flaxseed + 2 tbsp water (let sit 5 min).

2. Can I bake this instead of microwaving?
Absolutely! Bake at 350°F (175°C) for about 12–15 minutes in a ramekin.

3. How do I keep it extra moist?
Don’t overcook, and add a splash of cream if your batter looks too thick.

4. Is this diabetic-friendly?
Yes! Since it’s sugar-free and low-carb, it’s a great choice for diabetics.

Conclusion

This keto peanut butter pecan mug cake is warm, comforting, and just the right size to satisfy your sweet cravings without derailing your goals. Ready in minutes, it’s the perfect treat for busy days or late-night snacking.

If you loved this recipe, you’ll also enjoy:

Can’t wait to see your creations!

Interactive Elements

👉 Leave a review below if you try this recipe.
📌 Save it to your Pinterest board.
📸 Share your mug cake photos and tag me—I’d love to feature them!

Nutritional Information (per serving)

CaloriesCarbsFiberNet CarbsProteinFat
2707g3g4g10g22g
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Irresistibly Gooey Keto Peanut Butter Pecan Mug Cake (Ready in 5 Minutes!)


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  • Author: Poulef
  • Total Time: 5 minutes
  • Yield: 1 serving 1x

Description

This gooey Keto Peanut Butter Pecan Mug Cake is a warm, single-serve dessert that’s low-carb, sugar-free, and ready in just 5 minutes!


Ingredients

Scale

2 tbsp Peanut Butter (sugar-free)

2 tbsp Almond Flour

1 tbsp Erythritol

1/2 tsp Baking Powder

1 Egg

1 tbsp Heavy Cream

1 tbsp Pecans (chopped)

1/4 tsp Vanilla Extract

Pinch of Salt


Instructions

1. In a microwave-safe mug, whisk together the egg, peanut butter, and heavy cream until smooth.

2. Add almond flour, erythritol, baking powder, vanilla, and salt. Stir until combined.

3. Fold in chopped pecans.

4. Microwave on high for 60–75 seconds.

5. Cool for 1 minute before enjoying.

Notes

Use a larger mug to avoid overflow.

Don’t overcook—microwave times vary.

For extra gooey texture, cook for 60 seconds.

  • Prep Time: 3 minutes
  • Cook Time: 2 minutes
  • Category: Dessert
  • Method: Microwave
  • Cuisine: American

Nutrition

  • Serving Size: 1 mug cake
  • Calories: 270
  • Sugar: 1g
  • Sodium: 150mg
  • Fat: 22g
  • Saturated Fat: 6g
  • Unsaturated Fat: 15g
  • Trans Fat: 0g
  • Carbohydrates: 7g
  • Fiber: 3g
  • Protein: 10g
  • Cholesterol: 190mg
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26-Piece Stainless Steel Mixing Bowls Set

A versatile set of mixing bowls with airtight lids and non-slip bottoms. Includes 3 grater attachments for added convenience in the kitchen!

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I’m Poulef from Poulef Recipes. I love sharing perfected dishes from my kitchen. I’m sure they’ll earn a spot in your heart. Let’s savor this journey together!. Let’s be friends!