Prep the berries: Rinse and pat dry. If using strawberries, hull and slice them.
Set aside.
Make the custard: In a shallow dish, whisk eggs, milk, vanilla, cinnamon, salt, and optional sweetener until smooth.
Heat the pan: Place a large nonstick skillet or griddle over medium heat. Add a small pat of butter or a drizzle of oil to coat the surface.
Soak the bread: Dip each slice in the custard for 10–20 seconds per side. Let excess drip off.
Thick, slightly stale bread works best because it holds its shape.
Cook the toast: Lay soaked slices on the hot pan. Cook 2–3 minutes per side, until golden brown and set in the middle. Adjust heat as needed to prevent burning.
Stir the yogurt: In a bowl, mix Greek yogurt with lemon zest if using.
Taste and add a touch of honey or maple if you prefer it sweeter.
Assemble: Plate the French toast. Spoon a generous dollop of yogurt over each slice and scatter berries on top.
Finish: Drizzle with maple syrup if you like. Sprinkle with chopped nuts or seeds for texture.
Serve warm.