Keto Snickerdoodle Mug Cake

When that cinnamon-sugar craving hits but you’re committed to staying low carb, this keto snickerdoodle mug cake will become your new best friend. It’s soft, buttery, packed with warm cinnamon flavor, and ready in just minutes. No oven. No complicated steps. No blowing your carbs for the day.

Nothing is better than a 5 minute keto dessert.

Whether you need a quick weeknight dessert, a cozy afternoon treat, or something sweet after dinner, this single-serve keto mug cake delivers all the nostalgic snickerdoodle vibes.

Why You’ll Love This Keto Mug Cake

• Ready in about 5 minutes
• Made with simple pantry ingredients
• Low carb and gluten-free
• Perfect single serving (no leftovers calling your name!)
• That classic cinnamon-sugar flavor

It’s basically comfort food in a mug.

Tips for the Perfect Mug Cake

• Don’t overcook — it dries out quickly. Start with 60 seconds and add more time if needed.
• If you want it extra gooey, slightly undercook it.
• For a richer flavor, add a tiny pinch of cream of tartar for that classic snickerdoodle tang.
• Want it dairy-free? Swap butter for coconut oil.

Optional Add-Ins

• A spoonful of cream cheese in the center before cooking
• Sugar-free white chocolate chips
• A drizzle of keto caramel sauce
• A dollop of whipped heavy cream on top

If you try this keto snickerdoodle mug cake, let me know how it turned out! It’s proof that staying low carb doesn’t mean giving up cozy, comforting desserts.

Keto Snickerdoodle Mug Cake

Quick and easy mug cakes give me life on the keto diet when I want something sweet. I've offered recipes for chocolate, vanilla, and peanut butter mug cakes. Let me tell you, this snickerdoodle flavor is by far my favorite! It is a delicious dense cake that tastes just like an amazing snickerdoodle cookie.

5 from 3 votes

Course: Dessert

Cuisine: American

Prep Time: 5 minutes minutes

Cook Time: 1 minute minute

Total Time: 6 minutes minutes

Servings: 1

Calories: 304

Author: Jennifer Banz

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Ingredients

• 1 tablespoon butter
• 3 tablespoons almond flour (see my favorite on Amazon)
• 2 tablespoons sugar free granulated sweetener (see my favorite on Amazon)
• 1 large egg, beaten
• 1/2 teaspoon baking powder
• 1/2 teaspoon cinnamon
• Splash of vanilla extract

Instructions

• In a microwave-safe mug or ramekin, microwave the butter for 10 seconds to melt it. Swirl the butter around the inside of the mug to grease the sides. (leave the remaining butter as it is part of the batter.)
• Add the almond flour, sweetener, egg, baking powder, cinnamon, and vanilla. Whisk well until combined.
• Microwave on high for 60 seconds. Let stand in the microwave for 1 minute before removing. If you like, invert the cake onto a plate or enjoy it right in the mug. Sprinkle with extra cinnamon and powdered sweetener for garnish, if desired.

Servings: 1

Nutrition per serving

Calories: 304 | Carbohydrates: 5g | Protein: 11g | Fat: 28g | Fiber: 3g