In a large bowl, combine all ingredients. Mix together and whisk until smooth. Cook batches in buttered skillet on medium high temperature until bubbles form on the surface, then turn over and cook until dark golden brown. Serve with pecan butter and maple syrup.
Pecan Butter:
1/4 cup finely chopped pecans toasted and cooled
1/2 pound butter, softened
1/2 teaspoon cinnamon
1 teaspoon vanilla
1 tablespoon brown sugar
1 tablespoon honey
Mix all ingredients together (use rubber gloves). Roll in parchment paper and freeze. Cut into slices and top sweet potato pancakes.