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Keto Tres Leches Mug Cake

4.5 stars, average of 54 ratings

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I love mug cakes. They are the perfect keto treat with minimum effort and prep time. Keto mug cakes only takes about 3 minutes to prepare and you'll need just a few ingredients.

This recipe is based on my Red Velvet Keto Mug Cake which is soft and fluffy but not too dry. It doesn't taste eggy and it has just the right texture!

You'll be decorating it with the creamiest Tres Leches topping made with a combination of heavy whipping cream and my Keto Condensed Milk.

If you need to make this mug cake dairy-free, simply use coconut cream and my Dairy-Free Keto Condensed Milk to make the topping, and then substitute the butter in the cake with coconut oil.

Keep in mind that this keto recipe makes a generous mug cake so feel free to either make smaller mug cakes, or serve just half mug cake if the whole mug cake is too much for you.

If you love easy keto treats, make sure to check out my mug muffins and mug cakes. Chocolate, vanilla, coconut, berry, orange, chocolate chip, brownie — there's a low-carb mug cake for everyone!

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Hands-on Overall

Serving size 1 mug cake

Allergy information for Keto Tres Leches Mug Cake

✔  Gluten free
✔  Nightshade free
✔  Pork free
✔  Avocado free
✔  Fish free
✔  Shellfish free
✔  Beef free

Nutritional values (per serving, 1 mug cake)

Net carbs5.8 grams
Protein13.4 grams
Fat51.2 grams
Calories561 kcal
Calories from carbs 4%, protein 10%, fat 86%
Total carbs9.7 gramsFiber3.9 gramsSugars4.2 gramsSaturated fat26.3 gramsSodium195 mg(8% RDA)Magnesium68 mg(17% RDA)Potassium338 mg(17% EMR)

Ingredients (makes 2 mug cakes)

Mug Cakes:


  1. In a bowl, heat the almond milk and add the butter. Let it melt.
  2. Place all of the dry ingredients in a bowl and mix to combine. Keto Tres Leches Mug Cake
  3. In another bowl, beat melted butter and almond milk and with the eggs. Keto Tres Leches Mug Cake
  4. Add the dry ingredients and whisk to combine. Keto Tres Leches Mug Cake
  5. Divide the batter between two mugs or coffee cups and microwave on high for 90 seconds, or longer until cooked through in the middle. If still raw in the middle, add another 30 to 60 seconds to the cooking time.
    Tips for cooking in the oven: If you don't have a microwave, I suggest you make 4-8 servings at once. Preheat the oven to 175 °C/ 350 °F (fan assisted), or 195 °C/ 380 °F (conventional) and cook for about 15 minutes or until cooked in the centre. Keto Tres Leches Mug Cake
  6. Let the mug cakes cool down. Keto Tres Leches Mug Cake
  7. While they are cooling down, prepare the frosting. Place the condensed milk, cream and vanilla in a bowl. Keto Tres Leches Mug Cake
  8. Beat until stiff peaks form. Keto Tres Leches Mug Cake
  9. Make sure the cakes are fully cooled before frosting. Place the frosting in a piping bag and pipe on top or simply use a spoon and spread on top of each mug cake. Keto Tres Leches Mug Cake
  10. Enjoy immediately or store in the fridge for up to 3 days. Keto Tres Leches Mug Cake

Ingredient nutritional breakdown (per serving, 1 mug cake)

Net carbsProteinFatCalories
Almond milk natural (unsweetened)
0.1 g0.1 g0.2 g2 kcal
Butter, unsalted, grass-fed
0 g0.1 g11.5 g102 kcal
Almond flour (blanched ground almonds, almond meal)
1.5 g3.6 g8.8 g98 kcal
Coconut flour, organic
1.3 g2.1 g1.8 g44 kcal
Baking powder, gluten-free
0.1 g0 g0 g1 kcal
Erythritol (natural low-carb sweetener)
0.8 g0 g0 g3 kcal
Egg, whole, fresh, raw (free-range or organic eggs)
0.4 g6.3 g4.8 g72 kcal
Vanilla extract, sugar-free, alcohol-based
0.1 g0 g0 g5 kcal
Keto Condensed Milk, dairy-based (KetoDiet blog)
0.9 g0.7 g12.8 g122 kcal
Cream, heavy whipping, pouring, full-fat (30-40% fat)
0.8 g0.6 g11.4 g110 kcal
Vanilla extract, sugar-free, alcohol-based
0 g0 g0 g2 kcal
Total per serving, 1 mug cake
5.8 g13.4 g51.2 g561 kcal

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Martina Slajerova
Creator of

Martina Slajerova

I changed the way I ate in 2011, when I was diagnosed with Hashimoto’s, an autoimmune disease that affects the thyroid. I had no energy, and I found it more and more difficult to maintain a healthy weight.

That’s when I decided to quit sugar, grains, and processed foods, and to start following a whole-foods-based ketogenic approach to food.

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