Very Moist Coconut Sheet Cake
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I learned this Very Moist Coconut Sheet Cake from a potluck where everyone cleared their plates. It’s a simple, forgiving sheet cake that soaks up a sweet coconut milk mixture, gets a cloud-like Cool Whip frosting, and finishes with a snowy layer of coconut — perfect for family gatherings, summer BBQs, or when you want an easy dessert that looks like you spent hours on it. If you like big, saucy sheet cakes, this is a keeper and sits nicely alongside other crowd-pleasers like Christmas Funfetti Sheet Cake for party spreads.
Why you’ll love this dish
This cake ranks high for a few reasons: it’s fast, uses mostly pantry staples, and delivers a moist, tropical flavor without complicated techniques. The cream of coconut + sweetened condensed milk soak keeps every bite tender. Make it when you want something that travels well, feeds a crowd, or when you need a dessert that’s nearly failproof.
“A perfectly sweet, melt-in-your-mouth coconut sheet cake — everyone asked for seconds.” — A neighbor after the first time I brought this to potluck
Step-by-step overview
Before you dive into the details, here’s the quick process so you know what to expect:
- Mix a boxed cake mix with instant pudding and wet ingredients to make the batter.
- Bake in a rimmed sheet pan until set.
- While warm, poke holes and pour a mixture of sweetened condensed milk + cream of coconut to soak in.
- Chill until cool and set.
- Frost with whipped topping, sprinkle with grated coconut (toasted or plain), and serve.
What you’ll need
- 1 box Duncan Hines White Cake mix
- 1 small box vanilla pudding (or almond)
- 3 eggs, at room temperature
- 1 cup whole milk (room temp gives best rise)
- 1/2 cup vegetable oil
- 1 tsp vanilla extract (or almond extract)
- 1 can (about 15 oz) cream of coconut
- 1 can (14 oz) sweetened condensed milk
- 8 oz Extra Creamy Cool Whip (or homemade stabilized whipped cream)
- 12 oz frozen grated coconut (you can toast some for extra flavor)
Notes and substitutions:
- Whole milk and full-fat Cool Whip give the best texture; low-fat options will work but the cake won’t be as rich.
- If you prefer a nutty hint, swap vanilla pudding for almond pudding and use almond extract.
- Frozen grated coconut thaws quickly; toasting 1–2 cups in a skillet until golden adds real depth.
Step-by-step instructions
Preparation
- Preheat oven to 350°F (175°C). Grease a 13×18-inch rimmed baking sheet or jelly-roll pan. Line with parchment if you want easier removal.
- In a large bowl, combine the cake mix and the dry pudding mix. Whisk briefly to blend.
- Add eggs (room temperature), milk, vegetable oil, and vanilla. Beat on medium speed for 2 minutes until smooth and slightly aerated. Scrape the bowl once.
Baking
4. Pour batter into prepared pan and spread evenly with an offset spatula.
5. Bake 18–25 minutes. Start checking at 18 minutes: a toothpick inserted in the center should come out with a few moist crumbs, not wet batter.
6. Remove from oven and let rest 8–10 minutes.
Frosting and soaking
7. While cake is still warm, use the handle of a wooden spoon or a fork to poke holes all over (this helps the soak penetrate).
8. In a medium bowl, whisk together the sweetened condensed milk and cream of coconut until uniform. Pour evenly over the warm cake, letting it seep into the holes.
9. Cool completely to room temperature, then refrigerate for at least 1–2 hours so the soak sets.
Finishing
10. Once chilled and set, spread the Cool Whip evenly across the top.
11. Immediately sprinkle grated coconut over the frosting. If you toasted coconut, press lightly so it clings to the frosting.
12. Keep chilled until serving. Slice into squares and enjoy.
Best ways to enjoy it
Serve slices straight from the fridge for a refreshingly cool, moist bite. Pair with:
- Fresh tropical fruit (mango, pineapple) for a summer spread.
- A scoop of vanilla ice cream for an extra decadent treat.
- Strong coffee or lightly sweetened iced tea to balance the sweetness.
For parties, plate squares on parchment-lined trays garnished with a small wedge of lime or a sprinkle of toasted coconut.
Storage and reheating tips
- Refrigerate: Store covered in an airtight container or tightly wrapped with plastic wrap in the fridge for 3–4 days. The soak keeps it moist, but Cool Whip will slowly soften after a few days.
- Freeze: Wrap individual squares in plastic, then foil, and freeze up to 2 months. Thaw overnight in the refrigerator. Note: texture of Cool Whip changes slightly after freezing but remains tasty.
- Reheating: This cake is best cold; if you prefer it slightly warmer, bring a single slice to room temp for 20–30 minutes — avoid microwaving as it can break down the soaked layers and Cool Whip.
Helpful cooking tips
- Room-temperature eggs and milk incorporate better and produce a lighter crumb.
- Don’t overmix the batter once liquids are added; overbeating develops gluten and can make the cake tough.
- Poke holes while the cake is warm but not piping hot — too hot and the soak runs off; too cool and it won’t absorb.
- Toast coconut in a dry skillet over medium heat, stirring constantly, until golden (1–3 minutes). Watch closely — it browns fast.
- If you prefer a less sweet finish, fold a small amount of plain yogurt into the Cool Whip (take care with liquid balance).
Creative twists
- Add crushed pineapple (drained) folded into the Cool Whip for a tropical pineapple-coconut version.
- Use almond pudding and almond extract for a subtle nutty variant.
- Make it chocolate-coconut by sprinkling a thin layer of ganache over the soaked cake before chilling. For inspiration, compare approaches to coconut pairing on this coconut chocolate cake.
- For a lighter dairy-free option: replace milk with coconut milk and Cool Whip with a coconut-based whipped topping.
Helpful answers
Q: How long does this take from start to fridge?
A: Active hands-on time is about 20–30 minutes. Bake and cooling add 30–45 minutes, plus at least 1–2 hours chilling for ideal texture. Plan for ~3 hours total with chilling.
Q: Can I use fresh shredded coconut instead of frozen?
A: Yes. Fresh is excellent and often moister. If it’s very wet, pat it dry a bit. Toast fresh coconut the same way as frozen for added flavor.
Q: Can I substitute homemade whipped cream for Cool Whip?
A: Yes — stabilized whipped cream (with a little gelatin or mascarpone) holds up best. Fresh whipped cream will work but we recommend serving sooner rather than later.
Q: How do I scale the recipe for a smaller 9×13 pan?
A: You can use the same batter in a 9×13 pan; the cake will be thicker and will need a few extra minutes of baking (25–30 minutes). Poke holes and reduce the soak slightly to prevent puddling (about 3/4 of the soak mixture).
Conclusion
This Very Moist Coconut Sheet Cake is an easy way to get big flavor and a crowd-pleasing presentation from simple ingredients. If you want other coconut sheet cake ideas to compare texture and technique, see Lovefoodies’ take on a Super Moist Coconut Sheet Cake – Lovefoodies, Southern Bite’s instructions in their Easy Coconut Sheet Cake – Southern Bite, and another classic approach at Easy Coconut Sheet Cake – Don’t Sweat The Recipe.
Very Moist Coconut Sheet Cake
Ingredients
Method
- Preheat oven to 350°F (175°C). Grease a 13x18-inch rimmed baking sheet or jelly-roll pan. Line with parchment if you want easier removal.
- In a large bowl, combine the cake mix and the dry pudding mix. Whisk briefly to blend.
- Add eggs, milk, vegetable oil, and vanilla. Beat on medium speed for 2 minutes until smooth and slightly aerated. Scrape the bowl once.
- Pour batter into prepared pan and spread evenly with an offset spatula.
- Bake for 18–25 minutes. Start checking at 18 minutes: a toothpick inserted in the center should come out with a few moist crumbs, not wet batter.
- Remove from oven and let rest for 8–10 minutes.
- While cake is still warm, use the handle of a wooden spoon or a fork to poke holes all over (this helps the soak penetrate).
- In a medium bowl, whisk together the sweetened condensed milk and cream of coconut until uniform. Pour evenly over the warm cake, letting it seep into the holes.
- Cool completely to room temperature, then refrigerate for at least 1–2 hours so the soak sets.
- Once chilled and set, spread the Cool Whip evenly across the top.
- Immediately sprinkle grated coconut over the frosting. If you toasted coconut, press lightly so it clings to the frosting.
- Keep chilled until serving. Slice into squares and enjoy.
