Grand Marnier Cake
["1 1/4 c. sugar", "1 c. (2 sticks) butter, at room temperature", "3 large eggs, separated", "1/3 c. Grand Marnier", "2 1/2 c. cake flour (not self-rising)", "1 tsp. baking powder", "1 tsp. baking soda", "1 c. sour cream", "1/2 c. coarsely chopped nuts", "2 Tbsp. grated orange rind", "1 Tbsp. grated lemon rind", "1/3 c. orange juice (fresh)", "2 Tbsp. sugar", "confectioners sugar"]
["Grease a 9-inch tube pan.", "Line bottom with a circle of wax paper (in which a hole has been cut out at the center to accommodate the tube) and grease it.", "Lightly dust bottom and sides with breadcrumbs and tap to remove excess.", "Set aside."]
["sugar", "butter", "eggs", "Grand Marnier", "cake flour", "baking powder", "baking soda", "sour cream", "nuts", "orange rind", "lemon rind", "orange juice", "sugar", "confectioners sugar"]