Ingredients:
- 2 cups half-and-half
- 1/4 cup limoncello
- 3 tablespoons granulated sugar
- 1/2 teaspoon vanilla extract
- 1/2 teaspoon finely grated lemon zest
- 1/8 teaspoon kosher salt
- 3 large eggs
- Unsalted butter, for buttering the casserole dish
- 5 cups cubed challah (about 8 ounces)
- 1/3 cup confectioners' sugar
- 1 tablespoon limoncello
- 1 teaspoon finely grated lemon zest
