Introduction: Can a Cake Be This Easy and Tropical?
Ever dreamed of a dessert that tastes like a tropical vacation but takes almost no effort to make? Slow-Cooker Tropical Orange Cake is here to make that dream come true! This moist, zesty cake combines the bright flavor of orange with sweet pineapple and a creamy coconut pudding base, all topped with toasty marshmallows. Wondering how to bake a cake without an oven? With a slow cooker, you’ll have a warm, fluffy dessert that’s perfect for summer parties or cozy nights in. Let’s dive into this easy, island-inspired recipe that’ll have everyone asking for seconds!
Overview: Why This Slow-Cooker Tropical Orange Cake Is Special
Slow-Cooker Tropical Orange Cake is a delightful dessert that brings together the sunny flavors of orange, pineapple, and coconut in a moist, fluffy cake. The slow cooker makes it incredibly easy, with no need to heat up your kitchen. The coconut pudding layer adds creaminess, while the toasted marshmallows give a sweet, gooey finish. It’s a versatile treat that’s great for potlucks, family dinners, or any occasion that calls for something special.
- Time Requirement: About 15 minutes of prep, 4 hours of cooking, and 10 minutes of resting.
- Difficulty Level: Easy. This recipe is beginner-friendly, with simple mixing and slow-cooker steps.
- Why It’s Special: The slow cooker creates a moist, tender cake without the fuss of oven baking. The tropical flavors of orange, pineapple, and coconut make every bite feel like a getaway, and the marshmallow topping adds a fun, indulgent touch.
This cake offers some nutritional perks, too, with pineapple providing vitamin C and milk adding calcium and protein, making it a slightly healthier dessert option.
Essential Ingredients
To make Slow-Cooker Tropical Orange Cake, you’ll need a handful of ingredients that create a vibrant, tropical flavor. Here’s what you need and why each one matters:
- Cold 2% Milk (3 cups): The base for the coconut pudding layer, adding creaminess and moisture. 2% milk keeps it rich without being too heavy.
- Instant Coconut Cream Pudding Mix (3.4 oz package): Creates a creamy, tropical-flavored layer that sets the stage for the cake. Instant pudding is quick and easy to prepare.
- Orange Cake Mix (regular size): Provides the bright, citrusy flavor that defines the cake. Use a standard 15.25–18.25 oz box and follow package instructions for mixing.
- Unsweetened Pineapple Tidbits (¾ cup): Adds juicy, tropical sweetness and texture to the cake batter. Unsweetened tidbits let the orange flavor shine.
- Toasted Coconut Marshmallows (2 cups, quartered): Adds a sweet, chewy topping with a nutty coconut flavor. Toasting enhances their taste and gives a golden finish.
Substitutions and Variations
- Milk: Use whole milk for a richer flavor, or swap with almond or coconut milk for a dairy-free option (pair with a dairy-free pudding mix).
- Pudding Mix: Substitute with vanilla pudding mix and add ½ tsp coconut extract for a similar flavor.
- Cake Mix: Use a yellow or white cake mix with 1 tbsp orange zest or 1 tsp orange extract if orange cake mix is unavailable.
- Pineapple: Swap with crushed pineapple (drained) or diced mango for a different tropical fruit twist.
- Marshmallows: Use regular mini marshmallows or coconut flakes if toasted coconut marshmallows are hard to find. Toast them lightly before adding.

Step-by-Step Instructions
Making Slow-Cooker Tropical Orange Cake is a breeze with a slow cooker, delivering a moist, flavorful dessert with minimal effort. Follow these steps for a cake that’s ready in about 4 hours. I’ve included tips to ensure success, even for beginners.
- Prepare the Pudding Layer:
- In a large bowl, whisk 3 cups cold 2% milk with 1 package (3.4 oz) instant coconut cream pudding mix for 2 minutes, until thickened.
- Grease a 5-quart slow cooker with cooking spray or butter, then pour the pudding mixture into the bottom, spreading it evenly.
- Tip: Whisk vigorously to avoid lumps, and grease the slow cooker well to prevent sticking.
- Make the Cake Batter:
- Prepare the orange cake mix batter according to package directions (typically mixing with water, eggs, and oil).
- Gently fold in ¾ cup unsweetened pineapple tidbits until evenly distributed.
- Tip: Don’t overmix the batter to keep the cake light and fluffy.
- Layer the Cake Batter:
- Carefully pour the cake batter over the pudding layer in the slow cooker, spreading it gently to cover the pudding.
- Tip: Pour slowly to avoid mixing the pudding and batter layers, which keeps the textures distinct.
- Cook the Cake:
- Cover and cook on low for 4 hours, until the edges of the cake are golden brown and a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Tip: Check at 3.5 hours, as slow cookers vary. Avoid opening the lid too often to maintain heat.
- Add the Marshmallows:
- Remove the slow-cooker insert from the base to stop cooking.
- Sprinkle 2 cups quartered toasted coconut marshmallows evenly over the top of the cake.
- Let the cake stand, uncovered, for 10 minutes to allow the marshmallows to soften and meld with the warm cake.
- Tip: If marshmallows aren’t toasted, broil the cake briefly (1–2 minutes) after transferring to an oven-safe dish for a golden top, watching closely to avoid burning.
- Serve:
- Scoop or slice the cake into portions and serve warm, ensuring each piece has some pudding and marshmallows.
- Tip: Use a large spoon or spatula to serve, as the pudding layer makes the cake soft and scoopable.

Assembly: Bringing It All Together
Assembling Slow-Cooker Tropical Orange Cake is all about layering flavors and creating a dessert that’s as pretty as it is delicious.
- Layering: The pudding forms a creamy base, the pineapple-studded cake batter bakes into a fluffy layer, and the marshmallows add a sweet, chewy topping.
- Serving: Scoop or slice the warm cake into bowls or plates, ensuring each portion has a mix of pudding, cake, and marshmallows.
- Presentation Tips:
- Garnish with a sprinkle of extra toasted coconut or a few pineapple tidbits for a tropical touch.
- Serve in clear glass dessert cups to show off the layers of pudding and cake.
- Add a dollop of whipped cream or a scoop of vanilla ice cream for extra indulgence.
- For parties, serve on a colorful platter with tropical-themed napkins to enhance the island vibe.
Storage and Make-Ahead Tips
To keep your Slow-Cooker Tropical Orange Cake fresh and ready to enjoy, follow these storage and serving tips:
- Storing:
- Store leftovers in an airtight container in the refrigerator for up to 3–4 days.
- Freezing is not recommended, as the pudding and marshmallows may become watery or lose texture.
- Tip: Cover tightly to prevent the cake from drying out, and store without extra garnishes.
- Reheating:
- Microwave: Heat individual portions in a microwave-safe dish for 15–20 seconds to warm slightly, preserving the pudding’s texture.
- Oven: Reheat in a 300°F (150°C) oven, covered with foil, for 10–15 minutes.
- Tip: Add a splash of milk before reheating to keep the cake moist.
- Make-Ahead:
- Prepare the pudding mixture up to a day in advance and store in the fridge. Stir before adding to the slow cooker.
- Mix the cake batter just before cooking to ensure it stays light and fluffy.
- Toast coconut marshmallows ahead (if not pre-toasted) and store in an airtight container for up to a week.
Recipe Variations
Slow-Cooker Tropical Orange Cake is versatile and easy to customize. Here are some fun ways to make it your own:
- Mango Coconut Cake: Swap pineapple tidbits for ¾ cup diced mango for a different tropical fruit flavor.
- Lemon Coconut Cake: Use a lemon cake mix instead of orange for a tangy twist, and add 1 tsp lemon zest to the batter.
- Chocolate Orange Cake: Use a chocolate cake mix and add 1 tsp orange extract for a decadent, citrusy combo.
- Nutty Tropical Cake: Sprinkle ¼ cup chopped macadamia nuts or almonds over the marshmallows for extra crunch.
- Berry Orange Cake: Replace pineapple with ¾ cup chopped strawberries or raspberries for a fruity variation.
- Vegan Tropical Cake: Use a vegan cake mix, plant-based milk, and vegan pudding mix, and top with vegan marshmallows.
Conclusion: Get Cooking and Enjoy!
Slow-Cooker Tropical Orange Cake is the perfect dessert for anyone craving a taste of the tropics with minimal effort. The moist orange cake, creamy coconut pudding, and sweet marshmallow topping make every bite a delight. Whether you’re serving it at a summer barbecue, family dinner, or just treating yourself, this cake is sure to impress. So grab your slow cooker, mix up those tropical flavors, and enjoy a slice of paradise! Share your cake creations in the comments—I’d love to hear how you made it your own!
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Slow-Cooker Tropical Orange Cake
Description
Ever dreamed of a dessert that tastes like a tropical vacation but takes almost no effort to make? Slow-Cooker Tropical Orange Cake is here to make that dream come true! This moist, zesty cake combines the bright flavor of orange with sweet pineapple and a creamy coconut pudding base, all topped with toasty marshmallows.
Ingredients
To make Slow-Cooker Tropical Orange Cake, you’ll need a handful of ingredients that create a vibrant, tropical flavor. Here’s what you need and why each one matters:
-
Cold 2% Milk (3 cups): The base for the coconut pudding layer, adding creaminess and moisture. 2% milk keeps it rich without being too heavy.
-
Instant Coconut Cream Pudding Mix (3.4 oz package): Creates a creamy, tropical-flavored layer that sets the stage for the cake. Instant pudding is quick and easy to prepare.
-
Orange Cake Mix (regular size): Provides the bright, citrusy flavor that defines the cake. Use a standard 15.25–18.25 oz box and follow package instructions for mixing.
-
Unsweetened Pineapple Tidbits (¾ cup): Adds juicy, tropical sweetness and texture to the cake batter. Unsweetened tidbits let the orange flavor shine.
-
Toasted Coconut Marshmallows (2 cups, quartered): Adds a sweet, chewy topping with a nutty coconut flavor. Toasting enhances their taste and gives a golden finish.
Substitutions and Variations
-
Milk: Use whole milk for a richer flavor, or swap with almond or coconut milk for a dairy-free option (pair with a dairy-free pudding mix).
-
Pudding Mix: Substitute with vanilla pudding mix and add ½ tsp coconut extract for a similar flavor.
-
Cake Mix: Use a yellow or white cake mix with 1 tbsp orange zest or 1 tsp orange extract if orange cake mix is unavailable.
-
Pineapple: Swap with crushed pineapple (drained) or diced mango for a different tropical fruit twist.
-
Marshmallows: Use regular mini marshmallows or coconut flakes if toasted coconut marshmallows are hard to find. Toast them lightly before adding.
Instructions
-
Prepare the Pudding Layer:
-
In a large bowl, whisk 3 cups cold 2% milk with 1 package (3.4 oz) instant coconut cream pudding mix for 2 minutes, until thickened.
-
Grease a 5-quart slow cooker with cooking spray or butter, then pour the pudding mixture into the bottom, spreading it evenly.
-
Tip: Whisk vigorously to avoid lumps, and grease the slow cooker well to prevent sticking.
-
-
Make the Cake Batter:
-
Prepare the orange cake mix batter according to package directions (typically mixing with water, eggs, and oil).
-
Gently fold in ¾ cup unsweetened pineapple tidbits until evenly distributed.
-
Tip: Don’t overmix the batter to keep the cake light and fluffy.
-
-
Layer the Cake Batter:
-
Carefully pour the cake batter over the pudding layer in the slow cooker, spreading it gently to cover the pudding.
-
Tip: Pour slowly to avoid mixing the pudding and batter layers, which keeps the textures distinct.
-
-
Cook the Cake:
-
Cover and cook on low for 4 hours, until the edges of the cake are golden brown and a toothpick inserted in the center comes out clean or with a few moist crumbs.
-
Tip: Check at 3.5 hours, as slow cookers vary. Avoid opening the lid too often to maintain heat.
-
-
Add the Marshmallows:
-
Remove the slow-cooker insert from the base to stop cooking.
-
Sprinkle 2 cups quartered toasted coconut marshmallows evenly over the top of the cake.
-
Let the cake stand, uncovered, for 10 minutes to allow the marshmallows to soften and meld with the warm cake.
-
Tip: If marshmallows aren’t toasted, broil the cake briefly (1–2 minutes) after transferring to an oven-safe dish for a golden top, watching closely to avoid burning.
-
-
Serve:
-
Scoop or slice the cake into portions and serve warm, ensuring each piece has some pudding and marshmallows.
-
Tip: Use a large spoon or spatula to serve, as the pudding layer makes the cake soft and scoopable.
-
FAQs
Q: Can I use a different size slow cooker?
A: A 5-quart slow cooker is ideal, but a 4- or 6-quart will work. Adjust cooking time slightly—check at 3.5 hours for a 6-quart or 4.5 hours for a 4-quart.
Q: Is this cake healthy?
A: It’s a dessert, but pineapple adds vitamin C, and milk provides calcium and protein. Use a low-sugar pudding mix or less sugar in the batter for a lighter option.
Q: Can I make this without a slow cooker?
A: Yes! Layer the pudding and batter in a greased 9×13-inch baking dish and bake at 350°F (175°C) for 35–40 minutes, until a toothpick comes out clean. Add marshmallows for the last 2 minutes.
Q: How do I toast coconut marshmallows?
A: If not pre-toasted, spread marshmallows on a baking sheet and bake at 350°F (175°C) for 3–5 minutes, watching closely to avoid burning.
Q: Can I make this for a crowd?
A: Double the recipe and use a 6- or 7-quart slow cooker. Increase cooking time by 30–60 minutes, checking for doneness. Serve in a large dish for easy scooping.
Q: Is this recipe gluten-free?
A: Use a gluten-free orange cake mix and ensure the pudding mix is gluten-free. Check marshmallow ingredients, as some brands may contain gluten.