There are several sites that provide great recipes for renal failure patients. I recommend the DaVita recipes site, and the NKF's Kidney Kitchen. Both have a great collection and have regular updates and new content.
Great renal friendly fudge recipe:
http://www.davita.com/recipes/desserts/easy-low-phosphorus-fudge/a/293
Portions: 18
Serving size: one 3" x 1-1/2" piece
Ingredients:
- 2/3 cup liquid nondairy creamer
- 1-2/3 cups sugar
- 2 cups miniature marshmallows
- 1-1/2 cups semi-sweet chocolate chips
- 1 teaspoon vanilla
- Combine nondairy creamer and sugar in a large heavy saucepan. Bring to a boil; reduce heat to medium. Stir constantly and continue a rolling boil for 5 minutes.
- Remove pan from heat and add marshmallows, chocolate chips and vanilla. Stir until marshmallows are melted.
- Quickly pour into a greased 9" square pan. Cool; cut into 3" x 1-1/2" pieces making 18 pieces.