Protein French Toast (Custard-Soft, 36g Protein)
It's Sunday morning and French toast sounds right. The classic plate is two slices of white bread dipped in one egg and a splash of milk, fried in butter and finished with syrup: about 13 grams of protein and 400 calories, and you're back in the kitchen before 10.
This version keeps what you actually want, a thick slice with a crisp golden crust and a soft, custardy middle, and rebuilds the soak. Egg whites and half a scoop of vanilla whey go in with the whole eggs, so the bread drinks up protein instead of just milk. Two slices with Greek yogurt and strawberries give you 36 grams of protein and about 510 calories.
Ten minutes of prep, fifteen of cooking. The two-stage cook below is what gets the center soft and fully set at the same time.
Why it works
The custard carries the protein
Two eggs, half a cup of egg whites and half a scoop of whey add up to about 20 grams of protein per plate before you count the bread. Sturdy French bread adds almost 10 more, and a spoonful of Greek yogurt on top closes the gap to 36.
Soaked in minutes, not overnight
Thick, day-old slices absorb the whole custard in about three minutes if you flip them once. The skillet builds the crust, then a short stay in a 325°F oven cooks the center through gently, so you're not standing at the stove babysitting four slices.
Crisp outside, custard inside
Medium-low heat browns the outside slowly while the soaked center stays tender. Finishing in the oven brings the middle to 160°F without drying it out, which is what gives you that soft, bread-pudding texture under a crust that still crackles when you cut it.
Nutrition per serving
- Calories
- 509 kcal
- Protein
- 36 g
- Carbs
- 65 g
- Fat
- 12 g
- Fiber
- 4 g
Nutrition calculated from USDA FoodData Central
Recipe
Protein French Toast (Custard-Soft, 36g Protein)
Protein in this batch: 72 g
Equipment
- Shallow baking dish or pie plate
- Whisk
- Large nonstick skillet
- Wire rack set on a baking sheet
- Instant-read thermometer
Ingredients
About 45 g per slice, cut from a sturdy loaf. Day-old bread soaks up custard without falling apart; fresh, soft bread turns to mush. Thick-cut sandwich bread works too if you weigh out the same 180 g.
Carton egg whites are easiest. Separating fresh eggs works too: you need the whites of about 4 large eggs.
Whey or a whey-casein blend. Plant proteins thicken the custard into a paste that sits on the surface instead of soaking in.
Instructions
Heat the oven and set up the rack
Heat the oven to 325°F (165°C) with a rack in the middle. Set a wire rack on a baking sheet and slide it in to warm. The rack lets hot air reach the underside of the toast in the oven, so the bottom crust stays crisp instead of steaming against the pan.
Whisk the whey first, then the custard
In a shallow baking dish, whisk the whey into the milk until it forms a smooth, lump-free slurry. Add the eggs, egg whites, vanilla, cinnamon and salt and whisk for 30 seconds, until the custard is an even pale tan with no streaks of white and only a few specks of cinnamon floating on top.
Soak the bread and flip once
Lay the four slices in the custard in a single layer and let them sit for 30 seconds. Flip them and leave them for 2 to 3 minutes more, until almost all the custard is gone from the dish. When you press the center of a slice, it should feel heavy and soaked through, not dry in the middle.
Brown them over medium-low heat
Melt 1 teaspoon of butter in a large nonstick skillet over medium-low heat until it foams. Lift the slices out one at a time, let any drips fall back into the dish, and lay them in the pan. Cook 2 1/2 to 3 minutes per side, until both sides are deep golden brown and crisp. Work in batches, adding butter between them.
Finish the centers in the oven
Move the browned slices to the warm rack in the oven and bake for 6 to 8 minutes. They're done when they puff slightly, the center springs back when you press it, and an instant-read thermometer pushed into the middle of the thickest slice reads 160°F (71°C). Let them rest for 1 minute.
Top and serve right away
Put two slices on each plate. Spoon 1/4 cup of Greek yogurt over each plate, add 1/2 cup of sliced strawberries and drizzle 1/2 tablespoon of maple syrup over the top. Serve immediately, while the crust still crackles under the knife and the yogurt melts slightly into the warm bread.
Per serving: 509 kcal · 36 g protein · 65 g carbs · 12 g fat · 4 g fiber. Nutrition calculated from USDA FoodData Central.
Mistakes to avoid
Adding the whey straight to the eggs
Whey powder dumped into beaten eggs clumps into small dry balls that never dissolve and cook into chalky spots on the bread. Whisking it into the milk first gives the powder a thin liquid to disperse in. A small blender or milk frother also works if you're in a hurry.
Using fresh, soft bread
Soft sandwich bread straight from the bag is full of moisture already, so it can't absorb much custard, and what it does absorb makes it fall apart when you lift it. Use bread that's a day or two old, or dry fresh slices in a 300°F oven for 8 minutes first.
Cooking over high heat
Whey protein and milk sugars brown fast. On high heat the crust goes from golden to scorched in the time it takes the custard to warm up, and the center stays cold and wet. Keep the skillet at medium-low and let the oven do the rest.
Skipping the thermometer
A thick, fully soaked slice can look done outside while the middle is still raw egg. The center needs to reach 160°F (71°C). If a slice reads lower after 8 minutes, give it 2 or 3 more minutes in the oven and check again.
Variations
No protein powder
Leave out the whey and increase the egg whites to 3/4 cup (183 g). The custard is thinner and soaks in faster, so cut the second soak to 1 1/2 minutes. The slices taste more like classic French toast and come out a touch lighter (about 33 g protein, 500 kcal).
Chocolate French toast
Use chocolate whey instead of vanilla and whisk 1 tablespoon (5 g) of unsweetened cocoa powder into the milk along with it. The slices brown faster because of the cocoa, so watch the heat. Strawberries and yogurt still work on top (about 36 g protein, 515 kcal).
Peanut butter and banana
Swap the strawberries and maple syrup for 1 medium banana (118 g), sliced, and 1 tablespoon (16 g) of peanut butter warmed for 10 seconds and drizzled over both plates. It's richer and more filling, with the banana doing the sweetening (about 38 g protein, 560 kcal).
Storage
- Fridge
- Cool the slices completely, then store them in an airtight container with parchment between them for up to 3 days. Keep the yogurt and fruit separate.
- Freezer
- Freeze the cooked slices in a single layer on a baking sheet until firm, then transfer them to a freezer bag for up to 2 months.
- Reheat
- Reheat in a toaster or a 350°F (175°C) oven for 8 to 10 minutes from the fridge, or 12 to 15 from frozen, until hot all the way through. The microwave works in 45 to 60 seconds, but the crust goes soft.
FAQ
Can you put protein powder in French toast?
Yes, as long as you use a small amount and dissolve it properly. Half a scoop of whey for four slices adds about 12 grams of protein without making the bread dry or rubbery. More than that turns the custard thick and pasty. Always whisk the powder into the milk before adding the eggs so it doesn't clump.
What bread is best for protein French toast?
A sturdy loaf you can slice 1 inch thick, like French bread, sourdough or a firm whole-wheat bread, a day or two old. It holds the custard without collapsing and gives you the soft center. High-protein sandwich breads work too, but they're thinner, so soak them for about half the time.
Why is my French toast soggy in the middle?
The center didn't get hot enough to set the eggs. Thick, well-soaked slices need more time than the skillet alone can give without burning the outside. Brown them over medium-low heat, then finish them in a 325°F oven until the middle reaches 160°F. Fresh bread that absorbs unevenly can also leave a wet core.
How much protein is in regular French toast?
About 13 grams for two slices of white bread made with one egg and a splash of whole milk, with around 400 calories once you add butter and syrup. This version has 36 grams per plate for about 510 calories, mostly thanks to the egg whites, the whey in the custard and the Greek yogurt on top.
Can you make protein French toast ahead of time?
Yes. Cook the slices completely, including the oven step, cool them on the rack and refrigerate them for up to 3 days or freeze them for 2 months. Reheat in a toaster or oven to bring back the crust. Don't soak the bread the night before: it turns to mush and falls apart in the pan.
