Stir together first 4 ingredients.
Beat eggs and next 4 ingredients at medium speed with an electric mixer until smooth. Add flour mixture, beating at low speed until blended. Fold in carrots and next 3 ingredients. Pour batter into a greased and floured 13- x 9-inch pan.
Bake at 350° for 30 minutes; cover pan loosely with aluminum foil to prevent excessive browning, and bake 13 more minutes or until a wooden pick inserted into center comes out clean. Drizzle Buttermilk Glaze evenly over cake; cool completely in pan. Spread Cream Cheese Frosting evenly over cake.