Keto French Toast
Thick, custardy keto French toast made from a 90-second almond flour bread, soaked in cinnamon-vanilla egg custard and pan-fried golden in butter. At just 3.8g net carbs per serving and ready in only 20 minutes, it's the cozy weekend breakfast you didn't think low-carb could deliver.
Head of Nutrition · June 17, 2026
Nutrition per serving
Per serving · makes 2. Values are estimates; brands vary.
This keto French toast turns a quick almond flour mug bread into thick, custard-soaked slices that pan-fry up golden and cinnamon-scented. It's everything you miss about a lazy weekend breakfast, with under 4g net carbs per serving.
Ingredients
- 6 tbsp blanched almond flour
- 1 tbsp melted butter (for the bread), plus 1 tbsp for frying
- 3 large eggs (1 for the bread, 2 for the custard)
- 1/2 tsp baking powder
- 3 tbsp heavy cream
- 1 tsp powdered erythritol or monk fruit sweetener
- 1 tsp pure vanilla extract
- 3/4 tsp ground cinnamon
- Pinch of fine sea salt
- Sugar-free maple syrup, for serving (optional)
Instructions
- 1
Make the bread: In a microwave-safe ramekin or square glass dish, whisk together the almond flour, 1 tbsp melted butter, 1 egg, baking powder, and a pinch of salt until smooth. Microwave on high for 90 seconds, until set and springy.
- 2
Turn the bread out and let it cool for 2 minutes, then slice it into 4 thick slabs. For a drier, more bread-like texture that soaks up custard better, lightly toast the slices.
- 3
Make the custard: In a wide shallow bowl, whisk the 2 remaining eggs with the heavy cream, erythritol, vanilla, cinnamon, and a small pinch of salt until fully combined.
- 4
Dip each bread slice into the custard, letting it soak for about 15 seconds per side so it absorbs the egg mixture without falling apart.
- 5
Melt 1 tbsp butter in a nonstick skillet over medium heat. Add the soaked slices and cook 2 to 3 minutes per side, until deep golden brown and the custard is set.
- 6
Divide between two plates and serve warm with a drizzle of sugar-free maple syrup and an extra dusting of cinnamon if you like.
Tips & notes
- For dairy-free, swap the heavy cream for full-fat coconut cream and use coconut oil instead of butter; the net carbs stay nearly identical.
- The 90-second bread can be made the night before and refrigerated. Day-old bread actually soaks up the custard better and holds its shape.
- Store leftovers in an airtight container in the fridge for up to 3 days and reheat in a skillet or toaster to keep the edges crisp.
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Frequently asked questions
- How many carbs are in keto french toast?
- This recipe makes 2 servings, and each serving has just 3.8g net carbs (8.3g total carbs minus 4.5g fiber), 392 calories, 17g protein, and 33g fat. That's a fraction of the 30g+ net carbs in traditional French toast made with regular bread.
- Can I make this French toast without a microwave?
- Yes. Bake the bread batter in a small greased oven-safe dish at 350°F for about 12 to 15 minutes until set, then cool, slice, and proceed with the custard soak and pan-fry as written.
- Why does my keto French toast fall apart?
- Almond flour bread is more delicate than wheat bread. Slice it thick, let it cool fully (or use day-old bread), and limit the soak to about 15 seconds per side so it absorbs custard without turning mushy. Flipping gently with a wide spatula also helps.
