A dessert recipe requires 3/4 cups of flour, divided. If 1/4 cup of flour is needed for the crumble on top of the dessert, how much flour is used in the body of the dessert?

If 1/4 cup of flour is needed for the crumble on top of the dessert, then 3/4 - 1/4 = <<3/4-1/4=1/2>>1/2 cup of flour is used in the body of the dessert. Answer: \boxed{\frac{1}{2}\text{ cup}}.