01 -
Preheat oven to 200°F. Set a wire rack inside a rimmed baking sheet. Prick sweet potato all over with a fork and place in a microwave-safe bowl with 1 teaspoon water. Cover and microwave on high until fully tender, 5 to 7 minutes. Let cool, then discard water. Split sweet potato, scoop flesh into a bowl, and mash thoroughly to yield 3/4 cup.
02 -
In a large mixing bowl, whisk eggs and buttermilk together. Add the mashed sweet potato and 2 tablespoons maple syrup; whisk until fully combined.
03 -
In a separate medium bowl, whisk together flour, baking powder, kosher salt, baking soda, cinnamon, and nutmeg.
04 -
Gradually add the dry ingredients to the wet mixture. Stir gently until most dry spots disappear, then add melted butter and fold in just until incorporated. Do not overmix; some lumps are acceptable.
05 -
Heat a large nonstick skillet or griddle over medium-high heat. Brush surface with canola oil and reduce heat to medium. Working in batches, ladle 1/3 cup of batter per pancake onto skillet, gently flattening the tops. Cook until bubbles appear on the surface and the underside is deep golden brown, 2 to 4 minutes. Flip and cook the other side until pancakes are puffed and golden, an additional 2 to 4 minutes.
06 -
Transfer cooked pancakes to prepared wire rack and keep warm in preheated oven. Repeat with remaining batter, adding more oil as needed. Serve pancakes topped with chopped toasted pecans and additional maple syrup.