This Piña Colada Sheet Cake is bursting with tropical flavor from pineapple, coconut, and rum extract—finished with a fluffy whipped coconut frosting and garnished with toasted coconut and cherries.
Hand or stand mixer (with whisk attachment for whipped cream)
mixing bowls (at least two medium to large)
Measuring cups and spoons
rubber spatula
Fork (for poking holes in the cake)
Whisk
Blender or immersion blender (optional, to smooth cream of coconut if needed)
Fine mesh strainer (optional, for straining pineapple juice)
Ingredients
For the Cake
13.25ouncebox yellow cake mix
1cupcrushed pineappleundrained with the juice
⅓cupvegetable oil
3large eggsroom temperature
1teaspoonrum extract
For the Soak
1cupcream of coconutwell blended
½cuppineapple juice
2tablespoonsfresh lime juice
2teaspoonsrum extract
For the Frosting
3cupsheavy whipping creamcold
½cupcream of coconutwell blended
½cuppowdered sugar
1teaspoonrum extract
3.4ouncebox instant coconut cream pudding mix (dry, do not prepare with milk)
Optional Toppings
toasted shredded coconut
Maraschino cherries
Instructions
Preheat your oven to 350°F. Prepare a 9x13 baking dish with nonstick cooking spray and set it aside.
For the Cake
In a large mixing bowl, beat together (1) 13.25-ounce box yellow cake mix, 1 cup crushed pineapple (with the juice), ⅓ cup vegetable oil, 3 large eggs, and 1 teaspoon rum extract. Use a hand or stand mixer on medium speed for about 2 minutes, until the mixture is smooth and well combined.Pour the batter into your prepared baking pan and smooth out the top with a spatula.
Bake for 20–30 minutes, or until a cake tester or toothpick inserted into the center comes out clean. Don’t overbake! Let the cake cool completely in the pan on a wire rack.
For the Soak
In a medium mixing bowl or large measuring cup, whisk together 1 cup cream of coconut, ½ cup pineapple juice, 2 tablespoons fresh lime juice, and 2 teaspoons rum extract. If your cream of coconut is separated or lumpy, give it a spin in the blender or a quick whisk to combine and smooth it out.
Once the cake is fully cool, use a skewer or fork to poke holes all over the top surface. Slowly pour the coconut-pineapple mixture over the cake, letting it sink in evenly. Let it sit for 10–20 minutes so the liquid soaks in fully.
For the Frosting
In a large mixing bowl, whip 3 cups of cold heavy whipping cream with a hand mixer or stand mixer with a whisk attachment on medium-high speed until soft peaks form. Add ½ cup cream of coconut, ½ cup powdered sugar, 1 teaspoon rum extract, and (1) 3.4-ounce box dry coconut cream pudding mix. Continue whipping until stiff peaks form and the mixture holds its shape. Don’t overmix, or it could turn grainy.
Once the cake has absorbed the soak, spread the whipped coconut frosting generously over the top. Cover and place in the fridge for 1-2 hours to allow the flavors to meld.
Sprinkle toasted shredded coconut and dot with maraschino cherries.
Serve chilled and ENJOY!
Video
Notes
Blend Your Cream of Coconut – It often separates in the can, so give it a quick blend for the smoothest results.
Use Cold Heavy Cream – This helps your whipped topping set up beautifully and hold its shape.