Step 1

Put butter in a microwave safe bowl and microwave in 20 second increments, stirring in between, until melted. Add 1 cup brown sugar and stir until well incorporated Pour into bottom of a greased 9×13 pan, spreading mixture evenly.

Step 2

Beat eggs, milk, and vanilla until incorporated. Set aside.

Step 3

Lay a single layer of Texas Toast in pan, cutting pieces to fit if needed. Spoon 1 cup of egg mixture evenly over bread. Sprinkle with half of the brown sugar/cinnamon mixture. Repeat with second layer, using up the rest of egg mixture over that layer, and ending with a sprinkling of brown sugar/cinnamon mixture. Try to get the custard evenly soaked into the bread slices.

Step 4

Cover tightly and chill overnight in fridge.

Step 5

Bake at 350F for 40-45 minutes on lower middle rack — covered for the first 30 minutes, and uncovered after that. Sprinkle with powdered sugar. Be sure to scrape up all the bottom sticky goodness. If desired, serve with pure maple syrup.