Keto Cupcakes with Swiss Meringue Buttercream Frosting

Amazingly creamy and silky smooth, these Low-carb Swiss Meringue Buttercream Cupcakes will take your buttercream cupcakes to a whole new level. These cupcakes are perfect for Valentine’s Day, Mother’s Day or a baby shower!

Not only are these keto vanilla cupcakes made in a blender for ease, they’re super fluffy and moist with a nice crust on top, and decorated with our extra smooth Keto Swiss Meringue Buttercream. They’re one spectacular keto cupcake!

If you’ve never made Swiss Meringue Buttercream before it’s basically made from cooked egg whites, low-carb sweetener and a flavouring. Today I used vanilla and a pinch salt. I like Allulose because it results in the smoothest finish ie no grainy texture but you could use Erythritol or Swerve.

These show stopping cupcakes are the perfect treat for your loved ones!

Keto Cupcakes with Swiss Meringue Buttercream Frosting Follow us 136.0k

0 days, 0 hours, 20 minutes

Serving size cupcake

Nutritional values (per serving, cupcake)

Net carbs6.3 grams

Protein10.6 grams

Fat41.9 grams

Calories448 kcal

Calories from carbs 6%, protein 10%, fat 84%

Total carbs8.5 gramsFiber2.3 gramsSugars1.8 gramsSaturated fat20.8 gramsSodium215 mg(9% RDA)Magnesium53 mg(13% RDA)Potassium229 mg(11% EMR)

Ingredients (makes 12 servings)

Muffins:

1 stick unsalted melted butter, ghee or coconut oil, melted (113 g/ 4 oz)
¹/₂ cup unsweetened almond milk (120 ml/ 4 fl oz)
5 large eggs
1 tbsp sugar-free vanilla extract (15 ml)
²/₃ cup granulated Erythritol or Swerve (135 g/ 4.8 oz), or to taste
2 cups almond flour (200 g/ 7.1 oz)
¹/₃ cup coconut flour (40 g/ 1.4 oz)
¹/₄ cup whey protein powder or egg white protein powder (25 g/ 0.9 oz)
1 ¹/₂ tsp gluten-free baking powder
¹/₄ tsp sea salt

Swiss meringue buttercream frosting:

6 large egg whites
2 cups granulated Allulose or Erythritol or Swerve (400 g/ 14.1 oz)
3 sticks unsalted butter, cut into cubes (340 g/ 12 oz)
2 tsp sugar-free vanilla extract
pinch of sea salt
Optional: freeze-dried raspberry powder or freeze-dried crumbled raspberries to sprinkle on top

Instructions

To make the Keto Blender Vanilla Muffins, preheat the oven to 160 ?C/ 320 ?F (fan assisted), or 180 ?C/ 355 ?F (conventional). Place everything for the muffins in blender, wet ingredients first. Process until smooth. If any of the dry ingredients get stuck on the sides, use a spatula to scrape them and process again.
Divide the mixture between 12 lightly greased cupcake moulds or use silicone cups like I did (no greasing needed). Bake for 20 – 25 minutes or until an inserted skewer comes out clean.
Allow to cool in the pan for 5 minutes, then move to a cooling rack to cool completely before decorating.
While the muffins are cooling, prepare the buttercream frosting by following this Keto Swiss Meringue Buttercream recipe. You can use Allulose, Erythritol or Swerve to make it.
Add the buttercream to a piping bag and pipe onto the cooled cupcakes.
Optionally, dust with a little freeze-dried raspberry powder or sprinkle with crumbled freeze-fried raspberries. You can even use a few drops of red food coloring for a nice pink hue.
Store in the fridge for 4 days or freezer for 3 months.
Note: If not piping the Swiss Meringue Buttercream, you can half the mix and just spoon on a little frosting.

Ingredient nutritional breakdown (per serving, cupcake)

Net carbs	Protein	Fat	Calories
Butter, unsalted, grass-fed
0 g	0.1 g	7.6 g	68 kcal
Almond milk natural (unsweetened)
0 g	0.1 g	0.1 g	1 kcal
Eggs, free-range or organic
0.2 g	2.6 g	2 g	30 kcal
Vanilla extract, sugar-free, alcohol-based
0 g	0 g	0 g	3 kcal
Erythritol (natural low-carb sweetener)
0.6 g	0 g	0 g	2 kcal
Almond flour (blanched ground almonds, almond meal)
1.5 g	3.6 g	8.8 g	98 kcal
Coconut flour, organic
0.4 g	0.6 g	0.5 g	12 kcal
Whey protein powder (protein isolate, Jay Robb)
0.1 g	1.6 g	0 g	7 kcal
Baking powder, gluten-free
0.1 g	0 g	0 g	1 kcal
Salt, sea salt
0 g	0 g	0 g	0 kcal
Egg white, fresh
0.1 g	1.8 g	0 g	9 kcal
Allulose, natural low-carb sweetener
3.3 g	0 g	0 g	13 kcal
Butter, unsalted, grass-fed
0 g	0.2 g	22.9 g	203 kcal
Vanilla extract, sugar-free, alcohol-based
0 g	0 g	0 g	2 kcal
Salt, sea salt
0 g	0 g	0 g	0 kcal
Total per serving, cupcake
6.3 g	10.6 g	41.9 g	448 kcal