Gluten-Free Peanut Butter Mug Cake

User Reviews

4.4

66 reviews
Good
  • Prep Time

    2 mins

  • Cook Time

    1 min

  • Total Time

    3 mins

  • Servings

    1 Mug Cake

  • Calories

    357 kcal

  • Course

    Dessert

  • Cuisine

    American

Gluten-Free Peanut Butter Mug Cake

This Gluten-Free Peanut Butter Mug Cake is a quick single-serving treat made with a simple batter of gluten-free flour, peanut butter, maple syrup, and milk. The microwaved cake develops a soft, moist crumb with a peanut butter flavor. Optional additions like chocolate chips, vanilla extract, or cinnamon offer subtle variations. It’s an easy way to satisfy a sweet craving without baking a whole cake.

Description

The recipe combines all ingredients directly in a microwave-safe mug, mixing until smooth before microwaving for 60 to 75 seconds. The result is a small cake with a tender texture and balanced sweetness from maple syrup and peanut butter. Pinches of salt enhance the flavor, and optional chocolate chips add melty pockets of chocolate.

The straightforward method requires no separate wet or dry mixing and is convenient for a quick dessert or snack. Serving with vanilla ice cream or milk can complement the cake for a more indulgent experience.

Microwave times may vary, so starting with 60 seconds and adding more time as needed helps prevent overcooking. Using a digital thermometer to check an internal temperature of 190 to 200°F can ensure proper doneness.

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Ingredients

Servings
  • 3 Tbsp (24g) all-purpose flour packed and leveled*
  • ¼ tsp baking powder
  • 1 Tbsp (15ml) maple syrup pure
  • 2 Tbsp (30ml) peanut butter creamy
  • 4 Tbsp (60ml) milk of choice
  • 1 tsp avocado oil optional
  • Pinch salt sea salt

Optional Additions:

  • 1 to 2 Tbsp chocolate chips semi-sweet
  • ¼ tsp vanilla extract pure
  • ¼ tsp ground cinnamon

Instructions

  1. Add all of the ingredients to a microwave safe mug (or a small bowl or measuring cup) and mix until a smooth cake batter forms and all the lumps of flour have dissolved. There is no need to separate the wet ingredients from the dry ingredients as everything should mix together very easily. If you’d like, sprinkle extra chocolate chips on top of the cake batter.
  2. Microwave for 60 to 75 seconds (on the regular high setting), or until the center of the cake has set up. I recommend starting with 60 seconds, then adding 8-15 seconds if the cake looks like it still needs more time.
  3. Dig in and enjoy! For a special treat, serve the mug cake with a small scoop of vanilla ice cream and a glass of milk.

Notes

  • Use gluten-free all-purpose flour to keep the mug cake gluten-free.
  • If preferred, substitute maple syrup with granulated cane sugar plus an extra tablespoon of milk.
  • Any dairy or non-dairy milk can be used; oat milk works well.
  • Microwave time varies depending on your appliance; start with 60 seconds and increase in short increments.
  • Checking that the internal temperature reaches 190-200°F confirms the cake is fully cooked.

Nutrition Information

Show Details
Serving 1Mug Cake Calories 357kcal (18%) Carbohydrates 43g (14%) Protein 12g (24%) Fat 15g (23%) Saturated Fat 2g (10%) Monounsaturated Fat 1g (5%) Sodium 170mg (7%) Fiber 3g (12%) Sugar 18g (36%)

Nutrition Facts

Serving: 1Mug Cake

Amount Per Serving

Calories 357 kcal

% Daily Value*

Serving 1Mug Cake
Calories 357kcal 18%
Carbohydrates 43g 14%
Protein 12g 24%
Fat 15g 23%
Saturated Fat 2g 10%
Monounsaturated Fat 1g 5%
Sodium 170mg 7%
Fiber 3g 12%
Sugar 18g 36%

* Percent Daily Values are based on a 2,000 calorie diet.

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Overall Rating

4.4

66 reviews
Good

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