Preheat the oven to 350 degrees
Grease a 9 x 13 baking dish and set aside.
Drain pineapple in a small bowl, reserving the juice
14 ounces cans crushed pineapple
In a large bowl mix together the flour and sugar, add the juice and stir
6 Tablespoons all-purpose flour, ¾ cup sugar
Heat the flour mixture over low heat, stirring occasionally, until slightly thick
Next, place pineapple in prepared casserole dish in a even layer
Using a rubber spatula, spread the cooked mixture over pineapple Sprinkle the cheddar cheese over pineapple mixture
1 ½ cups sharp cheddar cheese
Melt butter and pour it into a medium bowl and mix in the crushed Ritz crackers
8 Tablespoons melted butter, 1 package Ritz crackers
Sprinkle salty crackers mixture on top of pineapple and cheese mixture
Bake at 350 for 20 minutes or until the top is nice and golden brown