Nana Margaret passed down this 2 ingredient secret years ago. It takes seconds to prep and the entire tray is empty in minutes.

This is one of those almost-too-easy recipes that feels like a little family secret. My Nana Margaret passed this 2‑ingredient trick down years ago, and it’s been my go-to when I need a dessert in a hurry but still want that homemade, comforting vibe. You literally stir together a box of angel food cake mix and a can of crushed pineapple, pour it into a glass casserole dish, and bake. The top turns golden and slightly crisp, the center stays soft and fluffy, and every time I set the pan on my speckled granite counter, the bars disappear in minutes. It’s perfect for busy weeknights, last‑minute potlucks, or whenever you want something sweet without a sink full of dishes.

Let the bars cool until just warm so they slice cleanly but still feel cozy and soft. I like to serve them straight from the glass casserole dish with a small spatula, alongside coffee or hot tea. For something a little more special, add a dollop of whipped cream or a scoop of vanilla ice cream and a few fresh pineapple chunks on the side. They also play really well with a fresh fruit salad or a simple green salad if you’re bringing them to a brunch spread. If you’re entertaining, cut the bars into small squares and arrange them on a platter, but honestly, they’re often eaten right out of the pan on my countertop.

Servings: 12

1 (15.25-ounce) box angel food cake mix (just the dry mix)

Preheat your oven to 350°F (175°C). Lightly grease a clear 9×13-inch glass casserole dish with nonstick cooking spray or a thin layer of oil so the bars release easily.

In a large mixing bowl, add the entire box of dry angel food cake mix. Do not add water or any ingredients listed on the cake mix box—Nana’s secret is using just the dry mix and pineapple.

Pour the entire can of crushed pineapple with its juice into the bowl with the cake mix. The pineapple juice replaces all the usual liquids and makes the batter light and fluffy.

Stir the mixture together by hand with a spatula or wooden spoon until it’s fully combined. The batter will foam up a bit and look airy and thick with visible pineapple pieces, which is exactly what you want.

Pour the batter into the prepared glass casserole dish and spread it into an even layer, smoothing the top so it bakes evenly and browns nicely.

Bake on the center rack of the preheated oven for 25–30 minutes, or until the top is lightly browned, the edges are set, and a toothpick inserted near the center comes out mostly clean (a few moist crumbs are fine).

Remove the dish from the oven and place it on a speckled granite or heat-safe countertop to cool. Let the bars cool for at least 20–30 minutes so the soft center can set and you can slice clean squares.

Once mostly cooled but still slightly warm, cut into 12–16 bars and serve directly from the clear glass casserole dish. Store any leftovers covered at room temperature for up to 2 days, or in the fridge if you prefer them chilled.