1 (3 ounce) package yellow cake mix
1/2 cup hot water
1 teaspoon vanilla extract
1/2 cup vegetable oil
2 cups white sugar
3 egg whites
1 teaspoon egg substitute
1 (8 ounce) package vanilla flavored Jell-O mix
1 cup vegetable oil
2 tablespoons lemon juice
1 (8 ounce) package instant orange spread
Preheat oven to 425 degrees F (220 degrees C). Grease and flour a 9x13 inch pan.
In a large bowl, combine cake mix, hot water, and vanilla extract. Stir until thoroughly combined. Stir the oil, sugar, egg whites, egg substitute, lemon juice, and orange spread into the bottom of the prepared pan. Pour remaining contents into prepared pan.
Bake in the preheated oven for 30 to 35 minutes, or until toothpick inserted into center comes out clean. Allow to cool, then frost cake with Frosting: