Sweet Potato Tres Leches

This Sweet Potato Tres Leches is the cozy dessert of your dreams. It’s soft, sweet, and melt-in-your-mouth delicious.

Every bite is unbelievably moist in that “how is this even real?” kind of way. It’s the perfect mix of comforting and indulgent, with just the right amount of sweetness to keep you coming back for more. 

The texture is so tender and creamy, it practically floats off the fork. And once that fluffy whipped topping hits? Game over.

It’s the kind of cake that instantly becomes the star of every dinner table and family gathering. One slice will have everyone falling in love and begging you to make it again.

Trust me, this is not a dessert you want to miss! Oh, then make my tres leches pound cake next.

Key Ingredients 

(full list of ingredients can be found in the recipe card)

• Roasted sweet potato puree adds natural sweetness, deep caramelized flavor, moisture, and a soft, tender crumb that helps the cake soak up the milk mixture. If you have any leftover, make my sweet potato bread next!
• Vegetable oil keeps the cake extra moist and plush after soaking. Oil-based cakes stay softer and don’t dry out in the fridge.
• Brown sugar adds molasses flavor, enhances moisture, and gives the cake a richer color and softer texture.
• Granulated sugar provides sweetness while helping the cake rise and stay light enough to absorb the leches.
• Buttermilk adds tang, activates the baking soda, and keeps the crumb ultra-tender so it doesn’t get dense once soaked.
• Eggs bind the batter and provide structure and richness. It’s essential for a cake that needs to hold up to lots of liquid.
• Warm spices (cinnamon, nutmeg, ginger, allspice) bring cozy fall flavor and enhance the natural sweetness of the sweet potatoes without overpowering them.
• All-purpose flour gives the cake its structure – just enough to stay sturdy while still soft enough to soak up all that tres leches goodness.
• Sweetened condensed milk adds lush sweetness and a thick, creamy texture that creates that signature custard-like soak. Save leftovers and make my caramel cake recipe next.
• Evaporated milk brings concentrated dairy flavor without extra sugar. It balances the condensed milk so the cake isn’t overly sweet.
• Whole milk loosens the mixture just enough so it fully absorbs into the crumb, keeping the texture light instead of heavy.

Variations 

• Dairy Free Option: Use coconut milk, almond milk (or your favorite non-dairy milk), and canned coconut cream. For the whipped topping, use a dairy-free heavy cream like coconut cream. Also, for the cake, swap out buttermilk for 1 cup of non-dairy milk and 1 tbsp of lemon juice or vinegar. 
• Add dulce de leche on top instead of caramel for a nice deep sweet flavor.

How To Make Sweet Potato Tres Leches 

Prep: Preheat the oven to 425 degrees F. Rinse and pat dry the sweet potatoes, then place onto a baking sheet. Bake for 40-60 minutes, until they’re soft to touch and begin to leak a syrupy liquid. Remove from the oven and allow them to cool until cool enough to touch. Remove the skins, place into a food processor and blend until smooth. Set aside.

Step 1: Reduce oven temperature to 350 degrees F. In a medium bowl, whisk together the dry ingredients – all purpose flour, baking powder, baking soda, cinnamon, nutmeg, ginger, allspice, and kosher salt. 

Step 2: In a separate large bowl, combine sweet potato puree, vegetable oil, brown sugar, sugar, buttermilk, and vanilla extract. Whisk together until combined, then add eggs and whisk until smooth. 

Step 3: Add the flour mixture to the wet ingredients and whisk together until smooth, about 30 seconds. Don’t overmix – whisk until just combined. Pour into a parchment lined 9×13 baking pan. Bake for 30-35 minutes, until a toothpick inserted into the center of the cake comes out clean. 

Step 4: While the cake is cooling, mix together evaporated milk, whole milk, and sweetened condensed milk. Whisk together until smooth. Allow the cake to cool for 20 minutes, then use a fork to polk holes all over the cake. This allows for the milk to seep into the cake. Pour the milk mixture on top of the cake (it may seem like a lot but it’ll all sink in!). Place the cake into the refrigerator and let it sit for at least 4 hours, ideally overnight. 

Step 5: Just before serving, make whipped cream topping. Combine cold heavy cream, powdered sugar, vanilla bean paste, and cinnamon in a large bowl. Whip until stiff peaks, then smooth on top of the cake. Drizzle salted caramel sauce on top.