01 - Whisk together eggs, milk, sugar, vanilla extract, cinnamon, and salt in a medium bowl until fully combined and smooth.
02 - Add bread cubes to the custard mixture. Gently toss to coat evenly. Allow to soak for 2-3 minutes, turning occasionally to ensure even absorption.
03 - Combine 1/4 cup granulated sugar and 1 teaspoon cinnamon in a small bowl. Mix thoroughly until uniform in color.
04 - Melt 1 tablespoon butter in a large nonstick skillet over medium heat, swirling to coat the bottom evenly.
05 - Using a slotted spoon, transfer soaked bread cubes to the skillet in a single layer. Cook for 2-3 minutes per side, turning to brown all sides evenly until golden. Repeat with remaining butter and bread cubes as needed.
06 - Immediately transfer hot cooked bites to the cinnamon sugar mixture. Toss gently to coat evenly while still warm.
07 - Whisk powdered sugar, milk, and vanilla extract in a small bowl until completely smooth and free of lumps.
08 - Drizzle glaze generously over warm cinnamon sugar-coated French toast bites. Serve immediately while hot.