Flourless Sunbutter and Jelly Mug Cakes make major Mug Cake Magic - that's what this recipe is all about!
Fluffy and lightly sweetened, these easy treats are flourless, gluten free, and nut free, making them the perfect quick treat for almost everyone!

Quick Look: Flourless Sunbutter & Jelly Mug Cakes
⏲️Ready In: 6 Minutes
🍽Servings: 2
🥗Nutrition: 13 Calories
🥘Main Ingredients: Sunflower seed butter, Egg, Strawberry jam, Coconut sugar
📋Dietary Notes: Gluten free, Grain free, Dairy free, Nut free
⭐Why You'll Love It: A quick, flourless dessert done in minutes? This is the perfect nut free treat when you want something fast! For a chocolate version, try Flourless Chocolate SunButter Mug Cakes.
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How to make flourless mug cakes
Turns out nut or seed butter + eggs makes pretty amazing (and simple!) mug cakes. Plus, that base immediately makes the mug cakes gluten free, paleo-friendly, and keto!
My goal while creating these treats was to keep them as simple as possible while not sacrificing flavor or texture. And after many, many tests, I nailed it!

So these simple flourless mug cakes start with a little coconut oil, SunButter, and eggs. Once that's stirred until smooth, add coconut sugar, baking soda, and a pinch of salt. Finally, stir in a swirl of strawberry jelly.
A minute in the microwave, and we've got mug cake magic!
Notes on ingredients for SunButter and jelly mug cakes
Before I get to the recipe, I want to share a few notes about choosing ingredients.
First, lets cover swaps to make these mug cakes keto-friendly. Coconut sugar, from what I understand, isn't widely used in keto. You should be able to substitute it for the equivalent amount of monk fruit or stevia.
Next, let's talk SunButter. Since SunButter sponsored this post, I obviously used SunButter to make the mug cakes. I have no idea if it will work with other brands or nut butters.
Some brands add extra oil into their butters while grinding, but SunButter doesn't - which is one of the reasons I love them - so if you use another kind, extra oils can mess with the overall texture. After all, with mug cakes, every adjustment matters. Even a slight adjustment can change everything!
My final ingredient note tackles the jelly! I know, it can be a struggle to find sugar- and junk-free jams or preserves. But that's the way to go here! My favorite to reach for is St. Dalfour's strawberry preserves, and I've seen them in quite a few stores (a feat in the Fargo-Moorhead area).

Why SunButter?
So, with all the nut and seed butters on the market, why use SunButter?
SunButter has been on my radar for years as a peanut butter alternative. I have a cousin who was deathly allergic to peanuts as a child, and my aunt was thrilled to discover SunButter. Not only is it a local company (based in Fargo, ND!), but they're committed to simple and natural ingredients. No fillers or added oils!
And while I mentioned using SunButter as a PB alternative, that's not the only allergy that can drive people to look for other options. I hear from people frequently who have a tree nut allergy, meaning almond butter and other popular nut butters are out. SunButter fills in there, too!
More Nut Free Dessert Recipes
Did you try this Flourless Sunbutter & Jelly Mug Cake recipe? I'd love to hear what you think! Please leave a comment and rating or tag me on Instagram - I appreciate your feedback.
📖 Recipe
SunButter and Jelly Flourless Mug Cakes
- Prep Time: 5 minutes
- Cook Time: 1 minute
- Total Time: 6 minutes
- Yield: 2 servings 1x
- Category: Dessert
- Method: Microwaved
- Cuisine: American
- Diet: Gluten Free, Nut free
Description
SunButter makes the perfect nut free, gluten free, and paleo mug cakes for two. See the notes below for how to make keto-friendly swaps, too!
Ingredients
- 2 teaspoons coconut oil, melted
- ¼ cup organic SunButter
- 1 egg
- 1 tablespoon coconut sugar
- ⅛ teaspoon baking powder
- 1 pinch sea salt
- 1 tablespoon strawberry jam
Instructions
- Add coconut oil, SunButter, and egg to a mug or small mason jar. Mix until smooth. Add coconut sugar, baking powder, and sea salt, stirring until fully incorporated. Add jam and stir a couple times to create swirls of jam, being careful not to mix it completely with the batter. Microwave for 1 minute. Drizzle with extra SunButter and jam, if desired, and serve immediately.
Notes
To make these mug cakes keto-friendly, swap out the coconut sugar for the equivalent amount of monk fruit sweetener.





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