Pastel de Mantequilla: A Low-Carb, Keto-Friendly Twist on a Classic Butter Cake

When it comes to indulgent and comforting desserts, Pastel de Mantequilla (Butter Cake) is a timeless favorite. This rich, moist cake combines the simplicity of butter, sugar, and flour with the delicate balance of vanilla and airy texture for a treat that’s both satisfying and nostalgic—a perfect match for celebrations, afternoon tea, or casual gatherings. However, traditional recipes often rely on high-carb ingredients like wheat flour, sugary syrups, and processed toppings, making them off-limits for those following a keto, low-carb, or gluten-free lifestyle. Enter Pastel de Mantequilla , a delicious, low-carb version that swaps out high-carb ingredients for wholesome alternatives like almond flour, sugar-free sweeteners, and natural vanilla extract. This cake is perfectly tender, flavorful, and guilt-free—perfect for indulging without derailing your diet.

In this article, we’ll guide you through making this delightful Pastel de Mantequilla step-by-step, explore its nutritional benefits, share creative variations, and explain why it’s become a favorite among health-conscious bakers. So grab your mixing bowl and let’s dive into this buttery, guilt-free creation!


Why Pastel de Mantequilla Is a Must-Try

Perfect for Low-Carb and Keto Diets

By using almond flour, coconut flour, and sugar-free sweeteners, this recipe keeps the carb count low while delivering all the indulgence of classic butter cake. It’s ideal for anyone following a ketogenic, low-carb, or sugar-free lifestyle.

Rich, Moist, and Flavorful

The combination of creamy butter, fluffy eggs, and vanilla creates a cake that’s both comforting and indulgent—a perfect balance of textures and bold flavors.

Quick and Easy to Make

This recipe requires just a few simple steps and minimal prep time, making it perfect for busy weeknights, meal prep, or casual gatherings. Simply mix, bake, and serve!


Health Benefits of Pastel de Mantequilla

Low in Carbs, High in Healthy Fats

Almond flour provides healthy fats and fiber, while sugar-free sweeteners ensure no blood sugar spikes. Adding eggs boosts protein and essential nutrients.

Packed with Nutrients

Eggs are rich in protein and vitamins, while almond flour adds vitamin E and magnesium. Using real butter provides fat-soluble vitamins like A, D, and K2.

Gluten-Free and Grain-Free

Since this recipe skips wheat-based flours entirely, it’s naturally gluten-free and grain-free, making it suitable for those with dietary restrictions or sensitivities.

A Treat You Can Feel Good About

Using fresh, whole ingredients ensures this cake is free from refined sugars and processed additives, making it a healthier alternative to store-bought options.


Step-by-Step Guide to Making Pastel de Mantequilla

Ingredients You’ll Need

For the Cake:

  • 2 cups almond flour
  • 1/4 cup coconut flour
  • 1 cup granulated sugar substitute (like erythritol or monk fruit)
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 3 large eggs
  • 1/2 cup unsalted butter, melted and cooled
  • 1/2 cup heavy cream or unsweetened almond milk
  • 1 teaspoon vanilla extract

For the Glaze (Optional):

  • 1/2 cup powdered sugar substitute
  • 1-2 tablespoons heavy cream or unsweetened almond milk
  • Optional: Lemon zest or vanilla extract for flavoring

Instructions

  1. Preheat the Oven :
    • Preheat your oven to 350°F (175°C). Grease a loaf pan or round cake pan and line it with parchment paper.
  2. Prepare the Dry Ingredients :
    • In a mixing bowl, whisk together the almond flour, coconut flour, sugar substitute, baking powder, baking soda, and salt.
  3. Prepare the Wet Ingredients :
    • In another bowl, whisk together the eggs, melted butter, heavy cream (or almond milk), and vanilla extract until smooth.
  4. Combine the Batter :
    • Pour the wet ingredients into the dry ingredients and stir gently until the batter is smooth and well combined—do not overmix.
  5. Bake the Cake :
    • Transfer the batter to the prepared pan, spreading it evenly.
    • Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean (a few crumbs are okay, but not wet batter).
  6. Cool and Glaze :
    • Let the cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
    • If desired, prepare the glaze by whisking together the powdered sugar substitute and heavy cream until smooth. Drizzle the glaze over the cooled cake and garnish with lemon zest or additional vanilla extract.
  7. Serve and Enjoy :
    • Slice and serve warm or at room temperature. Store leftovers in an airtight container at room temperature for up to 3 days or in the refrigerator for up to 7 days.

Creative Variations for Pastel de Mantequilla

Citrus Burst

Add lemon or orange zest to the batter and glaze for a bright, citrusy twist.

Chocolate Swirl

Fold sugar-free chocolate chips into the batter or drizzle melted sugar-free chocolate over the baked cake.

Coconut Delight

Add shredded unsweetened coconut to the batter for a tropical flair.

Cream Cheese Frosting

Top the cake with a dollop of sugar-free cream cheese frosting for a decadent finish.


Tips for Perfect Pastel de Mantequilla

  1. Use Fresh Ingredients : Fresh eggs, butter, and vanilla extract ensure the best flavor and texture. Avoid pre-mixed seasonings, which may contain hidden sugars or fillers.
  2. Don’t Overmix the Batter : Overmixing can make the cake dense. Stir just until the ingredients are combined.
  3. Customize the Sweetness : Adjust the amount of sugar substitute to suit your taste preferences, keeping in mind the richness of the butter.
  4. Store Properly : Keep leftovers in an airtight container to maintain freshness. Freeze slices for up to 3 months and thaw at room temperature before serving.

Why Pastel de Mantequilla Is Perfect for Every Occasion

Whether you’re hosting a casual gathering, packing lunches for work, or simply craving something sweet yet healthy, this cake is versatile enough to fit any setting. Its tender texture and bold flavors ensure it’s a hit at any gathering, while its low-carb profile makes it suitable for a variety of dietary needs.

For families, it’s a great way to introduce kids to healthier versions of their favorite desserts. And for those following a strict low-carb diet, it’s a lifesaver when cravings strike.


Conclusion: Indulge in Decadence Without the Guilt

Pastel de Mantequilla proves that you don’t have to sacrifice flavor or texture to enjoy a healthier version of a classic dish. With its tender crumb, rich buttery flavor, and endless customization possibilities, this cake is a must-try for anyone on a keto, paleo, or gluten-free journey.

Ready to give it a try? Gather your ingredients, follow our step-by-step guide, and savor the joy of homemade goodness. Whether you’re enjoying it as a dessert staple, snack, or party centerpiece, Pastel de Mantequilla is sure to become a favorite in your repertoire.

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Pastel de Mantequilla: A Low-Carb, Keto-Friendly Twist on a Classic Butter Cake


  • Author: EL WAFA

Ingredients


1 taza de mantequilla a temperatura ambiente




1 taza de azúcar




3 huevos




2 tazas de harina de trigo




1 cdta de polvo de hornear




1/2 taza de leche




1 cdta de esencia de vainilla




Pizca de sal



Instructions

Precalienta el horno a 180°C (350°F) y engrasa un molde para pastel.
Bate la mantequilla con el azúcar hasta que la mezcla esté cremosa y suave.
Agrega los huevos, uno a la vez, batiendo bien después de cada adición.
Tamiza la harina, el polvo de hornear y la sal. Añade los ingredientes secos a la mezcla de mantequilla, alternando con la leche.
Incorpora la esencia de vainilla y mezcla hasta que todo esté bien integrado.
Vierte la masa en el molde y hornea por 35-40 minutos o hasta que un palillo salga limpio.
Deja enfriar antes de desmoldar y disfruta solo o con un poco de glaseado.

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