Mix together dry ingredients (sugar & flour). Then use your hands and mix in the cheese - coating all the cheese very well.You can’t over mix. Then fold in the well drained chunk pineapple - Make sure everything is well coated and mixed together. Pour into an 8" x 8" baking dish lightly sprayed with non-stick cooking spray.
Combine Ritz cracker crumbs, melted butter and a tablespoon pineapple juice, tossing with a fork to moisten all the crumbs.Toss several times to absorb the butter mixture.
Top the pineapple mixture evenly with the cracker crumb mixture
Bake at 350 degrees for 25-30 minutes. I often add additional baking minutes to ensure the flour mixture is well done. Say, 5 to 7 minutes longer. If you don’t smell a sweet pineapple cake smell, it’s usually not done. Just don’t let it burn. If you double or triple the recipe - it could take an hour to bake.