Sweet Potato Loaf Cake

There’s a moment when the oven door opens and a warm, spicy sweetness sweeps through the kitchen — a heady blend of cinnamon and nutmeg, toasted pecans, and caramelized brown sugar layered over a soft, moist crumb. This Sweet Potato Loaf Cake smells like fall wrapped in a hug: slightly earthy sweet potato notes, a buttery brown-sugar finish, and a tender slice that yields with a satisfying, cake-like give. Each bite balances dense, velvety texture with the crunch of pecans and a glossy, nut-studded glaze that melts on your tongue.

This loaf is perfect for cozy mornings with coffee, afternoon tea with friends, holiday brunch tables, or as a comforting bake to bring to potlucks. If you enjoy sweet potato in other preparations, you might also like this savory take on the vegetable for snacks and patties: crispy sweet potato red-lentil patties.

At a Glance

Prep Time: 15 minutes
Cook Time: 55–60 minutes
Total Time: 1 hour 10–15 minutes (including cooling)
Servings: 10 slices
Difficulty Level: Easy–Moderate

Nutrition Highlights

Nutrition estimates are approximate and calculated using standard food composition values (USDA FoodData Central) and common serving assumptions. Values are per serving (1 of 10 slices).

Calories: ~470 kcal
Protein: ~4.8 g
Carbohydrates: ~54 g
- Sugars: ~30–35 g (from added sugars and sweet potato)
- Dietary Fiber: ~2–3 g
Fat: ~25 g
- Saturated Fat: ~6–8 g
Sodium: ~130 mg
Cholesterol: ~50–60 mg

For general guidance about daily nutrition and portioning, consult resources such as the Mayo Clinic or CDC dietary recommendations. These numbers are estimates and will vary based on exact ingredient brands and measurements.

Why You’ll Love It

This loaf nails the cozy, nostalgic flavors of autumn without feeling heavy or fussy. The sweet potato contributes natural moisture and a subtle, caramelized sweetness that keeps the crumb tender for days. The pecan-studded brown-sugar glaze adds contrast — a crunchy, buttery finish that turns simple slices into something special. It’s a great recipe for:

Bringing to gatherings (it slices well and looks beautiful)
Making ahead for busy mornings — toast, butter, or enjoy plain with coffee
Highlighting seasonal produce during fall and winter holidays
Sharing with neighbors or as a thoughtful homemade gift

Step-by-Step Instructions

Ingredients

1 cup mashed sweet potato (roasted)
1 3/4 cups all-purpose flour (about 210 g)
3/4 cup brown sugar (packed)
1/4 cup granulated sugar
1/2 cup vegetable oil (120 ml)
2 large eggs
1 1/2 teaspoons vanilla extract
1 teaspoon baking powder
1/2 teaspoon baking soda
1 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/2 teaspoon salt
1/4 cup milk (60 ml)
1 cup chopped pecans (about 100 g)
4 tablespoons butter (for glaze)
1/2 cup brown sugar (for glaze)
2 tablespoons heavy cream

Optional ingredients and substitutions

Swap vegetable oil for melted coconut oil or light olive oil (1:1).
Use 1/2 cup apple sauce + 1/4 cup oil to reduce fat.
For a nuttier loaf, replace half the all-purpose flour with whole-wheat pastry flour.
Make it gluten-free: replace flour with a 1:1 gluten-free baking blend (check xanthan gum in the blend).
Vegan option: use flax eggs (2 tbsp ground flax + 6 tbsp water, chilled) and plant-based milk and vegan butter for glaze; texture will be slightly denser.
Spice variations: add 1/2 teaspoon ground ginger or a pinch of cloves for warmth.

Method

Preheat your oven to 350°F (175°C). Line a 9×5-inch loaf pan with parchment paper, letting the ends hang over for easy removal.
In a large bowl, whisk together the mashed sweet potato, 3/4 cup brown sugar, granulated sugar, eggs, vegetable oil, milk, and vanilla extract until smooth and combined.
In another bowl, whisk the all-purpose flour, baking powder, baking soda, cinnamon, nutmeg, and salt.
Add the dry ingredients to the wet ingredients and stir just until incorporated; do not overmix — a few small streaks are okay. Fold in 3/4 cup of the chopped pecans (reserve the rest for the glaze).
Pour the batter into the prepared loaf pan and smooth the top with a spatula. Sprinkle the remaining pecans over the batter if desired.
Bake for 55–60 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs (not wet batter). If the top is browning too quickly after 40–45 minutes, tent with foil.
Cool the loaf in the pan for 10 minutes, then transfer it to a wire rack to cool completely before glazing.
To make the glaze, melt the 4 tablespoons butter in a small saucepan over medium heat. Add the 1/2 cup brown sugar and 2 tablespoons heavy cream, stirring until the sugar dissolves. Bring to a gentle simmer for about 2 minutes to thicken slightly. Stir in the chopped pecans, then remove from heat.
Pour the warm glaze over the cooled loaf and let it set for 10–15 minutes before slicing.

Practical tips

Avoid overmixing to keep the crumb tender — combine until just incorporated.
Let the loaf cool fully before glazing; a hot loaf will cause the glaze to soak in and become soggy.
Use a metal toothpick or skewer to test doneness; if it has moist crumbs but no raw batter, it’s done.
If your sweet potato puree is watery, gently drain or let it sit in a sieve to prevent a gummy loaf.

Best Pairings

Serve warm with a pat of butter or cream cheese spread for breakfast.
Pair slices with a strong coffee or spiced chai — the cinnamon in the loaf complements bold beverages.
Offer alongside a winter squash or sweet-potato soup for a comforting lunch: try this butternut-squash sweet potato soup for a seasonal combo.
Cut into thin slices and toast briefly for a crunchy edge, then drizzle additional glaze or maple syrup.
For dessert, serve with a scoop of vanilla ice cream and a sprinkle of toasted pecans.

Keeping it Fresh

Room temperature: Store covered (on a cake stand or wrapped in foil) for up to 2 days. Keep away from direct heat and sunlight.
Refrigeration: Wrap tightly in plastic wrap or place in an airtight container for up to 5 days. Bring to room temperature or warm briefly before serving.
Freezer: Wrap slices individually in plastic wrap and place in a freezer bag for up to 3 months. Thaw overnight in the refrigerator or reheat slices in a low oven or toaster oven.

Chef’s Advice

Use roasted, not boiled, sweet potatoes for a deeper caramelized flavor. Roast whole sweet potatoes until the skins blister and the flesh is soft, then scoop and mash.
Measure flour accurately: spoon into the measuring cup and level off with a knife — this prevents a dense loaf.
Toast the pecans briefly in a dry skillet to intensify their flavor before chopping and adding to the batter/glaze.
If you like a finer crumb, sift the dry ingredients to aerate them before folding into the wet mix.
For an extra-decadent glaze, add a tablespoon of maple syrup or a pinch of sea salt to finish.

Creative Twists

Maple-Pecan Loaf: Replace the glaze brown sugar with 1/4 cup maple syrup + 2 tbsp brown sugar; add 1/2 teaspoon maple extract to the batter.
Chocolate-Chip Sweet Potato Loaf: Fold 1/2 cup dark chocolate chips into the batter for a richer dessert-style loaf.
Savory Herb Version: Omit the glaze and 1/4 cup sugar, reduce brown sugar to 1/4 cup, add 1 teaspoon fresh chopped rosemary, and swap pecans for chopped walnuts; serve with whipped goat cheese.
Gluten-Free & Vegan: Use 1:1 gluten-free flour, replace eggs with flax eggs (see substitutions), and use plant-based butter and cream for the glaze. Expect a slightly denser crumb but the same heartwarming flavor.

Frequently Asked Questions

Q: Can I use canned sweet potato puree?
A: Yes — use about 1 cup (drained if watery). Taste and reduce added sugar slightly if the puree is very sweet.

Q: Why is my loaf dense or gummy?
A: Likely caused by overmixing, too much flour (measure carefully), or excess moisture from the sweet potato. Let roasted sweet potato cool and drain any excess liquid.

Q: Can I skip the glaze?
A: Absolutely — the loaf is excellent plain or with softened butter. The glaze adds sweetness and texture but isn’t required.

Q: How can I make it less sweet?
A: Reduce both brown sugars by 1/4 cup total and omit the granulated sugar; balance with a pinch more salt and a squeeze of lemon in the glaze if using.

Q: Can I double the recipe?
A: Yes, double and bake in two loaf pans, increasing bake time slightly if using larger pans; monitor doneness with a toothpick.

Conclusion

I hope this Sweet Potato Loaf Cake becomes a go-to in your baking rotation — it balances simplicity with special-occasion flavor and is endlessly adaptable. If you want to compare variations and inspirations, take a look at this classic adaptation by another baker in the community: Dorie Greenspan’s sweet potato loaf cake – by Ali Slagle, or explore a similar crowd-pleasing take on sweet potato bread for more ideas: Sweet Potato Bread Recipe. If you try the loaf, please share your photos and any tweaks — I love hearing how readers make recipes their own.