Martha's French Toast with Grand Marnier

In a large shallow dish, beat eggs with a fork. Beat in liqueur, sugar, large pinch of salt, and orange zest and juice. Add milk and beat until combined.

In a large heavy skillet, heat 4 tablespoons oil and 2 tablespoons butter over medium-high until sizzling. Gently dip brioche, one slice at a time, into egg mixture to coat and add to skillet (do not crowd pan). In batches, cook until golden brown on both sides, 5 minutes per batch, flipping once. Transfer to a paper-towel-lined wire rack. Repeat with remaining brioche, adding remaining oil and butter as needed. (Reduce heat if brioche is browning too quickly.) Serve with butter and sugar or maple syrup.