Preheat oven: Preheat your oven to 350°F (175°C), and line a muffin tin with 12 liners. Set aside.
Combine dry ingredients: In a large bowl, whisk together almond flour, baking powder, and salt.
Combine wet ingredients: In a separate large bowl, whisk together honey, eggs, milk, melted butter, vanilla extract, and lemon juice.
Add wet ingredients to dry: Pour the wet ingredients over dry and mix until well combined and no clumps of almond flour remain. Be careful not to overmix.
Add blueberries: Add blueberries to batter and gently fold until evenly distributed. Reserve about 1/4 of the blueberries.
Fill muffin liners: Add batter to muffin liners evenly, filling each about halfway. Top with remaining blueberries and slivered almonds.
Bake: Bake muffins for 20-25 minutes on the middle rack. Muffins are done when they are golden brown and a toothpick inserted into the center comes out clean.
Cool: Let muffins cool for 5 minutes in the pan. Then, transfer to a wire rack until they are completely cooled. Enjoy immediately or store!
Calories: 327kcal, Carbohydrates: 19g, Protein: 11g, Fat: 26g, Saturated Fat: 4g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 2g, Trans Fat: 0.2g, Cholesterol: 52mg, Sodium: 217mg, Potassium: 59mg, Fiber: 5g, Sugar: 11g, Vitamin A: 195IU, Vitamin C: 2mg, Calcium: 145mg, Iron: 2mg