Ingredients
6 large egg whites (separated from yolks carefully)
1 cup (240 g) plain non-fat Greek yogurt (unsweetened, very low carb)
½ cup (60 g) unflavored whey protein isolate
1 tablespoon baking powder
½ teaspoon cream of tartar
½ teaspoon salt
Optional: 1-2 tablespoons erythritol or stevia blend (for slightly sweet bread)
Instructions
1. 1. Preheat oven to 325°F (160°C). Line a standard loaf pan (8.5×4.5 inches) with parchment paper, leaving overhang for easy removal.
2. 2. In a large bowl, whisk together Greek yogurt, egg whites, salt, and optional sweetener until smooth and well combined.
3. 3. In a separate small bowl, whisk together whey protein isolate, baking powder, and cream of tartar until evenly mixed, breaking up any clumps.
4. 4. Gradually add the dry mixture to the wet mixture. Fold gently with a spatula until just combined. Do not overmix; the batter will be thick.
5. 5. Pour batter into prepared loaf pan and smooth the top.
6. 6. Bake for 35-45 minutes, until golden brown and a toothpick inserted in center comes out clean. The bread should sound hollow when tapped on the bottom.
7. 7. Cool in pan on a wire rack for 10-15 minutes, then lift out using parchment overhang and transfer to rack to cool completely before slicing.
Notes
Cool the bread completely before slicing to avoid a gummy texture. Use room temperature egg whites for better volume. Ensure egg whites are free of any yolk. For a savory variation, add garlic powder, onion powder, dried herbs, or everything bagel seasoning. For a cheesy version, fold in ½ cup shredded cheddar or mozzarella. Store in an airtight container at room temperature for 2-3 days, refrigerate for up to 1 week, or freeze sliced for up to 3 months. Reheat by toasting from fridge or frozen; avoid microwave.
- Prep Time: 10 minutes
- Cook Time: 40 minutes
- Category: Bread
- Method: Baking
- Cuisine: American
- Diet: keto, low carb, gluten free
Nutrition
- Serving Size: 1 slice
- Calories: 65
- Sugar: 1 g
- Sodium: 210 mg
- Fat: 1 g
- Saturated Fat: 0.3 g
- Unsaturated Fat: 0.5 g
- Trans Fat: 0 g
- Carbohydrates: 2 g
- Fiber: 0 g
- Protein: 12 g
- Cholesterol: 5 mg