Preheat the oven to 350 °f and line your muffin pan with paper liners, or lightly grease it with cooking spray.In a medium bowl, whisk together the almond flour, salt, baking soda, and coconut sugar.In another bowl, whisk together the coconut oil, eggs, vanilla, lemon extract, lemon juice, and milk. Pour into the dry ingredients and whisk until combined. (Alternatively you can make a "well" in the dry ingredients and add the wet ingredients to it. Whisk the wet ingredients together, and then whisk into the dry. One less bowl!)Add the lemon zest and poppy seeds and stir until combined.Scoop the batter into the prepared muffin tins and bake for 18-22 minutes.