Fat Free Fruit Cake Recipe: Boozy Rum-Soaked Holiday Tradition

This holiday fruit cake delivers all the rich, boozy flavor of tradition without a trace of fat. The secret lies in carefully selected substitutions and a slow baking process that ensures perfect moisture.

Soaked in rum and packed with dried fruits, this version proves you can have your cake and enjoy it guilt-free. The result is a tender, aromatic cake that’s perfect for gifting or serving at celebrations.

Ingredients for Fat Free Fruit Cake

Pantry staples and a splash of rum create this holiday showstopper with zero fat.

The dried fruits need to be top-notch here. Trader Joe’s has great pre-mixed options, or hit the bulk bins at Whole Foods for custom blends. I like a mix of golden raisins, tart cherries, and citrus peel for bright pops of flavor. The applesauce is your fat substitute—Mott’s unsweetened is my go-to. Don’t skimp on the rum; Myers’s Dark or Captain Morgan add that deep, boozy note that makes this taste like the real deal.

No rum on hand? Brandy or bourbon work in a pinch (just use the same amount). Swap walnuts for pecans or almonds if that’s what’s in your pantry. The applesauce can be replaced with mashed banana or pureed prunes—same quantity, but they’ll add their own flavor. For the egg whites, aquafaba (chickpea brine) works as a vegan swap, though the texture might differ slightly.

This cake actually improves with age. Wrap it tightly in cheesecloth soaked in rum and store in an airtight container for up to 2 weeks at room temperature. For longer storage, it freezes beautifully for 3 months. Slice before freezing for easy serving later.

Step-by-Step Instructions for Fat Free Fruit Cake

Here’s how I make this holiday favorite without sacrificing richness or flavor.

Step 1: Soak the Dried Fruits in Rum

In a large bowl, combine the 3 cups mixed dried fruits, 1 cup chopped dates, and 0.75 cup dark rum. Stir well to ensure all the fruit is coated with the rum.

Cover the bowl with plastic wrap and let it sit at room temperature for at least 2 hours, or ideally overnight. This soaking step allows the fruits to plump up and absorb the rich rum flavor, which is key to the cake’s moist texture and boozy depth.

Step 2: Prepare the Dry Ingredients

In a separate bowl, whisk together the 3 cups all-purpose flour, 1.5 cups granulated sugar, 2 tsp baking powder, 1 tsp baking soda, 1.5 tsp ground cinnamon, 0.5 tsp ground nutmeg, and 0.5 tsp salt.

This ensures all the leavening agents and spices are evenly distributed throughout the flour. I always use fresh baking powder and soda for the best rise, and freshly ground spices for the most vibrant flavor.

Step 3: Mix Wet and Dry Ingredients

In another bowl, beat the 6 whole egg whites until frothy. Add the 1.5 cups unsweetened applesauce and 2 tsp vanilla extract, mixing until smooth. The applesauce replaces traditional fat while keeping the cake tender and moist.

Gradually fold the dry ingredients into the wet mixture, alternating with the soaked fruits and any remaining rum. Stir just until combined—over-mixing can make the cake dense. Fold in the 1 cup chopped walnuts at the end.

Step 4: Bake to Perfection

Preheat your oven to 325°F. Pour the batter into a greased 9×13-inch baking pan or two 9-inch round pans. Smooth the top with a spatula for even baking.

Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean. If the top begins to brown too quickly, tent the pan with aluminum foil. The cake is done when it’s golden brown and springs back lightly when touched.

Step 5: Cool and Serve

Let the cake cool in the pan for 15 minutes, then transfer it to a wire rack to cool completely. This cooling step ensures the cake sets properly and is easier to slice.

Once cooled, wrap the cake tightly in plastic wrap or foil. For the best flavor, let it sit for at least 24 hours before serving. This allows the rum-soaked fruits to meld with the cake, creating a rich, boozy holiday treat that tastes even better the next day.

Essential Equipment for This Recipe

Mixing Bowls

I use a set of stainless steel mixing bowls with nonslip bases—Cuisinox makes my favorite. The 3-quart is perfect for soaking fruits, while the 5-quart handles the batter. They nest for easy storage too. 💛

Measuring Tools

Accurate measurements matter here. I rely on OXO Good Grips measuring cups and spoons—the magnetic set stays organized. For the rum, a liquid measuring cup with clear markings ensures precise pouring.

Baking Pan

A 9×13-inch nonstick baking pan works best for even baking. I love the USA Pan with its reinforced steel and silicone coating. For round cakes, 9-inch pans from the same brand are my go-to.

Electric Mixer

While you can mix by hand, a stand mixer makes the egg whites frothy in seconds. My KitchenAid Artisan handles this batter effortlessly. The whisk attachment is essential for incorporating air.

Cooling Rack

Don’t skip the cooling rack! I use a stainless steel wire rack from Wilton—it’s sturdy and allows air circulation. Proper cooling prevents a soggy bottom and helps the cake set. 💡

Plastic Wrap

For wrapping the cooled cake, heavy-duty plastic wrap is a must. Reynolds Kitchens makes a great option that clings tightly. This keeps the cake moist during its 24-hour resting period.

Frequently Asked Questions