1 1/2 cups flour
1 cup sugar
1/4 cup unsweetened cocoa powder
1 tsp baking soda
1/2 tsp salt
1/3 cup cooking oil
1 Tbsp vinegar
1 tsp vanilla
1 cup water
Place flour, sugar, cocoa powder, baking soda, and salt in a large resealable plastic bag. Seal bag. Shake to mix well. Put flour mixture into an ungreased 8x8 baking pan.
Use a table fork to make a well in the middle of the flour mixture. Measure the oil in a liquid measuring cup. Add the vinegar and vanilla to the cup. Stir. Pour into well in flour mixture. Add water.
Stir together all ingredients. Bake at 350 degrees for 40-45 minutes.
Cool. If desired, serve with vanilla ice cream, chocolate syrup, and a maraschino cherry.