Sweet Potato Loaf Cake (with Maple Pecan Streusel)

This delicious and easy to make sweet potato loaf cake is so moist with a tender, velvety crumb and is topped with buttery pecan streusel. It is finished with a brush of maple syrup while warm. This loaf cake has a gently glossy top, crisp pecans, and a mouth-watering aroma that fills the entire kitchen.

Every time I bake this sweet potato bread or sweet loaf, it makes my whole house smell like the holidays and comfort. It has become a family favorite and I find myself intentionally roasting extra sweet potatoes so that I will have leftovers to make this. This loaf is perfect served with a cup of coffee/tea or as light dessert.

Why You’ll Love This Sweet Potato Bread

• Easy to make with a soft, plush crumb that melts in your mouth
• Sour cream adds richness and moisture
• The pecan topping actually stays put and will be everyone’s favorite part
• Warm maple syrup gives the loaf a bakery-style sheen
• Excellent keeper, it is arguably even better the next day

Ingredient Notes

• Sweet Potato: Roasted sweet potato gives the deepest flavor and driest mash, which helps avoid gummy bread. Steam or microwave if preferred, but drain well and mash smoothly.Avoid canned sweet potato pie filling. It is too wet and already sweetened/spiced.
• Sour Cream: Full-fat sour cream gives the best texture and richness. Greek yogurt will also work, but the flavor will be slightly tangier.
• Oil vs Butter: Oil creates a softer, moister loaf that stays tender for days. Melted butter gives more flavor but a slightly firmer, drier crumb.
• Pecans: Toast them first for maximum flavor and crunch. Even 2-3 minutes in a dry skillet makes a difference.
• Maple Syrup:  Adds richness, flavor and shine to the streusel topping.

Baking Tips for the best Sweet Potato Loaf Cake or Bread

• Don’t Underbake: Sweet potato breads can appear done while the center is still slightly wet. Look for a fully domed center, light springiness, no visible wet batter in cracks. If in doubt, give it another 5 minutes.
• Smooth Sweet Potato: Lumps of fibrous sweet potato can create dense streaks in the crumb. Mash thoroughly, briefly process using a mixer, or push through a sieve for the smoothest texture.
• Press the Topping In: This is the secret to the “no-slip” streusel. Don’t press hard; just enough that the topping partially embeds into the batter.
• Cool Before Slicing: This loaf slices beautifully once fully cooled. Slicing while warm compresses the crumb and loosens the topping.
• Brushing the warm loaf with maple syrup creates: A subtle sheen, better pecan adhesion, and a delicate maple aroma.

Variations

• Sweet potato muffins: Bake at 350°F for approximately 20-24 minutes.
• Using canned sweet potato puree: Make sure it is plain puree with no sugar or spices added. Blot excess moisture if it seems particularly wet.
• Pumpkin bread: Pumpkin puree works beautifully as a variation, though the flavor is slightly earthier and less naturally sweet.
• Add chocolate chips: Use about ¾ cup. Dark chocolate works especially well with the maple syrup and pecans.

Storage Tips

• Room Temperature: Store tightly wrapped for up to 3 days. The flavor actually deepens overnight.
• Refrigerator: Keeps up to 1 week, though refrigeration firms the crumb slightly. Bring the loaf to room temperature before serving.
• Freezer: Wrap slices individually and freeze for up to 2 months. Excellent lightly toasted from frozen.

Frequently asked questions

Why did my loaf sink slightly?

Usually one of three things can cause this cake loaf to sink: underbaking, overly wet sweet potato puree, or overmixing the batter. A slight dip is normal in very moist quick breads.

Does the pecan topping stay crunchy?

Yes, but by day two, it softens slightly from moisture in the loaf.

Photos of the step by step preparation process for Sweet Potato Loaf Cake with maple pecan streusel topping:

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