01 - Whisk together eggs, milk, sugar, vanilla, cinnamon, and salt in a medium bowl until fully combined and smooth.
02 - Add bread cubes to the egg mixture, toss gently to coat evenly, and let soak for 2-3 minutes to absorb liquid.
03 - Combine 1/4 cup sugar and 1 teaspoon cinnamon in a small bowl, mixing thoroughly until uniform.
04 - Melt 1 tablespoon butter in a large nonstick skillet over medium heat, swirling to coat the bottom evenly.
05 - Transfer soaked bread cubes to skillet using a slotted spoon, arranging in a single layer. Cook 2-3 minutes per side, turning until all sides are golden brown and crisp. Repeat with remaining butter and bread cubes.
06 - Immediately transfer cooked bites to the cinnamon sugar mixture and toss to coat evenly while still warm.
07 - Whisk powdered sugar, milk, and vanilla in a small bowl until completely smooth and no lumps remain.
08 - Drizzle glaze generously over warm French toast bites and serve immediately.