Lemon Jello Mix

Ingredients:
- 1/2 c. sugar
- 1 Tbsp. flour
- 1 egg yolk
- 2 Tbsp. butter
- 1 can crushed pineapple (save juice)
- 1 pkg. lemon jello mix
- 1 c. hot water
- 1 c. cold water
- 2 bananas
- 1 c. marshmallows
- 1 c. nuts (optional)

Directions:
- Mix first 4 ingredients.
- Put pineapple juice in measuring cup and add water to make 1 cup; add to the first 4 ingredients. Bring to a good boiling point and boil for 5 minutes.
- Mix jello mix with 1 cup hot water and 1 cup cold water and add boiling mixture to it.
- Chill this until firm, then add the pineapple, bananas, marshmallows and nuts.
- Top with off with 1 cup of whipped cream.