1/2 box acini de pepe macaroni
1/2 tsp. salt
1/2 c. sugar
1 tbsp. flour
3/4 c. pineapple juice
2 egg yolks
1/2 c. drained crushed pineapple
1/2 c. drained pineapple tidbits
1/2 (10 oz.) pkg. marshmallows
1 can mandarin oranges, drained
1 (8 oz.) carton Cool Whip

Boil macaroni 15 to 20 minutes. Drain and cool. Combine salt, sugar, flour, pineapple juice, egg yolks and cook over medium heat, stirring constantly until thick. Cool completely and pour over cooled macaroni. Store in covered container overnight in refrigerator. Next morning, stir in remaining ingredients.