01 - Slice each piece of thick bread into 3 or 4 uniform sticks, adjusting based on bread thickness. Day-old bread works best for preventing sogginess.
02 - In a wide shallow bowl, whisk together eggs, whole milk, vanilla extract, 2 tablespoons sugar, 1/2 teaspoon cinnamon, and salt until fully combined and smooth.
03 - Combine 1/3 cup sugar and 1 tablespoon cinnamon in a separate bowl. Mix thoroughly until evenly incorporated and set aside for coating.
04 - Melt 1 tablespoon butter in a large nonstick skillet over medium heat. Swirl to coat the bottom evenly.
05 - Working quickly, dip each bread stick into the egg mixture. Turn to coat all sides evenly, but avoid over-soaking which leads to sogginess.
06 - Place coated sticks in the hot skillet. Cook for 2-3 minutes per side, turning to brown all four sides until golden and crisp. Add remaining butter between batches as needed.
07 - Immediately transfer hot French toast sticks to the cinnamon sugar mixture. Toss gently to coat evenly while still warm for maximum adherence.
08 - Arrange coated sticks on a serving plate. Serve immediately with warm maple syrup for dipping.