Amazing Protein Peanut Butter Lava Cake with all the flavor and gooeyness, but sugar free and low fat! Healthy peanut butter molten lava cake uses protein powder and pb powder, and no sugar or oil.

I’ve really been into the whole molten lava cake thing right now, and this peanut butter flavor is just hard to beat! Like for real. Gooey molten lava cake with all the peanut butter flavor, but actually heathy.

Ingredients for Protein Peanut Butter Lava Cake

This single serve protein Peanut Butter lava cake is made with a few simple and healthy ingredients, and has no butter or oil and no sugar either!

Vanilla Protein Powder needed for high protein lava cake and also replaces the ‘sugar’. I used Vanilla Milkshake protein powder from Quest Nutrition.
HTLT Supps is another great option.
Peanut Butter Powder also known as Powdered Peanut Butter. I recommend Lakanto for a sugar free version (the code HAYLSKITCHEN gives you a discount). Or you could use the one from PbFit too.
Whole Wheat Pastry Flour – or a regular all purpose flour
A bit of Greek Yogurt to add moisture since there’s no butter or oil in here
Egg Whites for extra protein
Unsweetened Almond Milk
Baking Powder

If you need to add more sweetness, Stevia Powder or Zero Calorie Sugar Substitute; I use Lakanto, to keep this protein lava cake recipe sugar free; (code HAYLSKITCHEN for a discount here too)

Tips to make Peanut Butter Molten Lava Cake with Protein Powder

This peanut butter molten lava cake using protein powder really is an easy one and made in a mug or ramekin, but make sure you do all of this stuff to get is perfect.

Grease the ramekin! You want the lava cake to come off easily.
Use an oven-safe mug if you need.

Don’t over-mix the batter!
Make sure you gently fold the dry mix into the wet to combine them.
If you over-mix it, the protein powder will make your protein lava cake tough, dense and gummy.

Taste the batter and see if you need some extra sweetener. I’d recommend using stevia powder to maintain the consistency of the batter.

Don’t overcook. The top will should be just cooked and crusty, but will slightly jiggle when moved.
It will continue to cook when out, and you want the proper molten Oreo lava center.

Wait for the cake to cool a bit.

Run a knife along the side of the ramekin to loosen it so it comes off smoothly when you flip it on a plate.

Alternates for this Healthy Peanut Butter Lava Cake Recipe

I recommend making this a healthy peanut butter lava cake with the protein powder and other ingredients listed since it gives the best results.

If you need other options for the flours and such, here’s some alternatives for a healthy air fryer lava cake for one:

Whole Wheat Pastry Flour: All purpose flour, 1:1 gluten free baking flour or Almond Flour in the same amount by weight not cups.
Update: A reader has confirmed that Almond flour works here.
Egg Whites: 2 Tbsp aquafaba (chickpea liquid). I haven’t given this a try yet though.
Greek Yogurt: Coconut Yogurt, Pumpkin Puree, Mashed Banana
Almond Milk: Any other milk

A Vegan Peanut Butter Molten Lava Cake

This peanut butter molten lava cake recipe has no butter or milk and can easily be made Vegan too.

For the perfect Vegan protein Oreo lava cake recipe, make sure you use a plant based protein powder, aquafaba and coconut yogurt.

More Peanut Butter Protein Powder Dessert Recipes:

More Protein Lava Cake Recipes to Try: