Chocolate Walnut Muffin in a Mug {THM S}

Trim Healthy Mama recipe

I’m always looking for new Trim Healthy Mama recipes that are satisfying and delicious. It can be hard, though, to find recipes that pass my personal taste test.

After some tweaking and experimenting, I’ve finally come up with a chocolate muffin that I love. The taste and texture are similar to the “real” sugar-laden treats that I’ve always enjoyed.

Doesn’t this look yummy?

Trim Healthy Mama recipe

A few tips:

  • Be sure to use only the yolk of the egg–it really makes a huge difference in the texture. (I save the egg white for making Trim Healthy Pancakes).
  • You can add more cocoa if you prefer a deeper chocolate flavor. If you’ve had trouble with THM chocolate recipes tasting bitter, though, I’d suggest sticking with the smaller amount of cocoa.
  • If you don’t have THM Sweet Blend, you can use another sweetener. Just check this handy-dandy sweetener conversion chart to find the right amount.

Trim Healthy Mama recipe

Chocolate Walnut Muffin in a Mug {THM S}


  • 1 Tbsp. butter softened
  • 1 1/2 tsp. THM Sweet Blend
  • 1 egg yolk
  • 1 1/2 tsp. cocoa
  • 1/8 tsp. baking powder
  • Pinch of salt
  • 2 Tbsp. heavy cream
  • 1/4 c. almond flour
  • 1-2 Tbsp. finely chopped walnuts


  • Blend softened butter and Sweet Blend together in a mug or dessert bowl.
  • Add egg yolk and stir well.
  • Add cocoa, baking powder, salt, and cream; stir until combined.
  • Add almond flour and mix with fork until well blended.
  • Sprinkle walnuts on top of batter.
  • Microwave on high for 1 min. 30 sec. or until muffin is done.

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Recipe Rating


  1. Dear Contented, This is amazingly. Thank you for both satisfying my sweet tooth and love of chocolate. Praise the Lord!!!

  2. Hello! Just tried these with almond/coconut milk blend in place of cream and tripled the recipe to share with my toddlers. Baked at 350 for 16 minutes and they are delicious! Thanks for the recipe! Oh! I also subbed one third of the almond flour for flax because Iā€™m breastfeeding šŸ™‚

    1. Judy Hoch says:

      So glad you liked it, Laura! Thank you for sharing your modifications, too–I know that will be helpful for others who may be dairy-free. Great idea on the flax, too. šŸ™‚

  3. How could I make this as a full sized cake? Either 8×8 or 9×13? I love it for myself but want to make it big enough to share.

    1. Judy Hoch says:

      I’ve never tried making it as a full-sized cake. What about multiplying the recipe and then baking the muffins in a muffin pan? That might be a little easier.