High-Protein Chocolate Loaf Cake
High-Protein Chocolate Loaf Cake
Moist chocolate loaf cake with a glossy chocolate glaze — low-carb, sugar-free, and ready in 45 minutes
This high-protein chocolate loaf cake is rich, moist, and deeply chocolatey. Almond flour, protein powder, and cocoa create a tender crumb, then a simple sugar-free chocolate glaze finishes it off. Every slice delivers 12 g of protein and only 4 g net carbs.
Low-carb, sugar-free, and perfect for a make-ahead dessert or protein-packed snack.
Why you’ll love this cake
- 12g protein per slice — a high-protein dessert
- Only 4g net carbs and fully sugar-free
- Moist chocolate crumb with a glossy glaze
- Ready in about 45 minutes
- No special equipment needed
- Great for meal prep or weekend treats
Health notes
- High protein: Protein powder boosts every slice.
- Low carb: Almond flour keeps net carbs low.
- Sugar-free: Powdered sweetener and sugar-free chocolate throughout.
- Simple: One-bowl style mixing and a quick glaze.
Key element — don’t overbake
Pull the loaf when a toothpick comes out with a few moist crumbs. Overbaking dries out the cake.
Ingredients
Chocolate loaf
- 1½ cups almond flour
- ½ cup chocolate or unflavored protein powder
- ⅓ cup cocoa powder
- ⅓ cup powdered sugar-free sweetener
- 1 tsp baking powder
- ¼ tsp salt
- 3 large eggs
- ⅓ cup melted butter or coconut oil
- ⅓ cup unsweetened almond milk
- 1 tsp vanilla extract
- Optional: 2 Tbsp sugar-free chocolate chips
Chocolate glaze
- ½ cup sugar-free chocolate chips
- 2–3 Tbsp heavy cream or coconut cream
- 1 tsp butter (optional, for shine)
Swaps
- Higher protein: Add an extra scoop of protein powder and a splash more milk.
- Dairy-free: Use coconut oil and coconut cream.
- Mocha: Add 1 tsp instant coffee to the batter.
- Nut-free: Use a seed flour blend if needed.
Instructions
| 1 | Preheat and prep. Preheat oven to 350°F (175°C). Line a 9×5-inch loaf pan with parchment paper. |
| 2 | Mix the dry ingredients. Whisk almond flour, protein powder, cocoa, sweetener, baking powder, and salt in a large bowl. |
| 3 | Add the wet ingredients. Stir in the eggs, melted butter, almond milk, and vanilla until the batter is smooth. Fold in chocolate chips if using. |
| 4 | Bake. Pour the batter into the prepared pan and smooth the top. Bake 28–35 minutes until a toothpick inserted in the center comes out with a few moist crumbs. |
| 5 | Cool and glaze. Cool the loaf in the pan for 10 minutes, then transfer to a rack. Melt the chocolate chips with the cream (and butter if using) until smooth. Pour the glaze over the cooled loaf and let it set before slicing. |
Pro tips
- Don’t overmix once the wet ingredients are added — this keeps the crumb tender.
- Check for doneness a few minutes early; almond-flour cakes can dry out quickly.
- Let the loaf cool completely before glazing so the glaze sets properly.
- A warm knife makes cleaner slices through the glaze.
- Store covered so the cake stays moist.
Nutrition
| Nutrient | Per slice |
|---|---|
| Calories | 210 |
| Protein | 12g |
| Net carbohydrates | 4g |
| Total carbohydrates | 7g |
| Fiber | 3g |
| Total fat | 15g |
| Sodium | 140mg |
Estimates based on almond flour, protein powder, and sugar-free chocolate. Exact numbers vary with protein powder brand and glaze amount.
Variations
Chocolate chip
Fold extra sugar-free chocolate chips into the batter before baking.
Mocha loaf
Add 1–2 tsp instant espresso to the dry ingredients.
Peanut butter swirl
Swirl a few spoonfuls of natural peanut butter into the batter before baking.
Mini loaves
Bake in mini loaf pans for 18–22 minutes for individual portions.
Storage
| Method | Time | Notes |
|---|---|---|
| Room temperature | 1–2 days | Keep covered |
| Refrigerator | Up to 5 days | Store in an airtight container |
| Freezer | Up to 2 months | Wrap well; thaw before serving |
FAQ
Test your knowledge
5 quick questions about this chocolate loaf cake
1. Protein per slice?
2. Net carbs per slice?
3. Why not overbake the loaf?
4. About how long does this take?
5. Best way to store leftovers?
