In a large bowl, sift together the flour, baking powder, salt, and sugar.
Make a well in the middle and pour in the milk, egg, and butter. Mix with a whisk or fork until smooth.
Heat a non-stick griddle or large pan over medium-high heat. Once hot, grease with butter, oil, or spray.
Pour or scoop ¼ cup of batter for each pancake. With the back of a spook, spread the batter a little. Once the edges are defined and bubbles have formed, flip the pancake over and cook for another minute on the other side. Remove the pancakes from the pan onto a plate and keep them warm covered with a clean kitchen towel or plate. Repeat the process with the other pancakes.
Make the filling:
Meanwhile, cook the sausage over medium-high heat in a separate large skillet. Pour off the excess greaseand add the eggs; scramble until fluffy.
To the hot pan, add the whisked eggs. Cook, while stirring, until they're cooked through.
Assemble:
Scoop some of the scrambled egg mixture onto a pancake, pick it up and fold, place it in a taco holder and drizzle with syrup.
Notes
For pancakes, use the right baking powder: Since pancake batter naturally has a mild, neutral flavor, it's important to use aluminum-free baking powder. The metallic flavor will ruin the taste, especially in fluffy pancake recipes that call for 2 or more teaspoons. Trust me on this one.