How can I make this brioche French toast dairy-free?
Choose a dairy-free loaf (many store-bought “vegan brioche” or challah breads are butter- and milk-free) and replace the ¾ cup whole milk plus ¼ cup heavy cream with 1 cup of a rich plant milk such as oat, soy, or canned light coconut milk. Cook the soaked slices in melted coconut oil or a plant-based butter, and the texture and flavor stay virtually identical.
How can I adapt this brioche French toast to be gluten-free?
Swap in a sturdy, certified-gluten-free brioche or challah loaf (or thick-cut gluten-free sandwich bread) and let the slices air-dry for 10–15 minutes so they soak up custard without falling apart. Prepare the custard exactly as written, cook in a separate pan with clean utensils, and double-check that all add-ins—vanilla, spices, and toppings—are labeled gluten-free to avoid cross-contamination.
How can I turn this brioche French toast into a high-protein breakfast?
Whisk an extra 2 egg whites (or one whole egg) into the custard and swap the milk-and-cream combo for 1 cup of ultrafiltered high-protein milk (e.g., Fairlife) or soy protein drink. For an added boost, dissolve 1 scoop (about 25 g) unflavored or vanilla whey/plant protein powder into the custard, then finish the cooked slices with Greek-yogurt “whipped cream” and a sprinkle of chopped nuts or hemp seeds to push each serving well past 25 g of protein.