Shoo-Fly Cake
["1 c. dark Karo syrup", "2 c. hot water", "1 Tbsp. baking soda", "4 c. flour", "2 c. light brown sugar", "1 tsp. baking soda", "1 tsp. salt", "3/4 c. shortening"]
["Mix first three ingredients (it should fizz).", "Mix next five ingredients and set 1 cup aside.", "Mix liquid and crumb mixtures together.", "Pour into a greased 9 x 13-inch pan.", "Sprinkle top with the cup of crumb mixture.", "Bake at 375\u00b0 for 35 to 40 minutes."]
["syrup", "water", "baking soda", "flour", "light brown sugar", "baking soda", "salt", "shortening"]