In a small bowl, whisk together the buckwheat flour, almond meal, baking powder, baking soda and salt.
In a medium bowl, whisk together the lemon syrup, lemon juice, egg, milk and vanilla extract. Add the dry ingredients and stir until combined. Stir in the lemon zest.
Heat a griddle or large pan on the stove over medium heat. Add a small pat of butter – just enough to “grease” whatever pan you’re using. Once the griddle or pan is hot, use a 1/3 cup measuring scoop to scoop the batter onto the pan. Fit as many as you can on at once, but don’t overcrowd it. You need room to flip!
Once the batter in the pan starts bubbling and setting up around the edges, flip the pancakes and cook a couple more minutes, until golden. Place on a baking sheet fitted with a rack (or directly on the oven rack) to keep warm while you cook the rest and make the syrup. Continue this process until all of the batter is used up.
In a small saucepan, combine all syrup ingredients and bring to a heavy simmer. Continue cooking, stirring occasionally, until the blackberries begin to break down and the mixture has reduced and become thicker (more syrupy) in consistency. Drizzle over pancakes to serve.