Preheat oven to 350 degrees F. Line an 8x4 inch loaf pan with parchment paper or spray pan generously with nonstick cooking spray.
In a large bowl, whisk together the dry ingredients: almond flour, coconut flour, baking soda and salt.
In a separate large bowl, whisk together all wet ingredients: eggs, maple syrup, lemon juice, and lemon zest. Add dry ingredients to wet ingredients and mix well to combine. Lastly, fold in blueberries.
Pour batter into prepared loaf pan and spread out evenly. Bake for 40-50 minutes until tester comes out clean. Allow loaf to cool completely in the pan before removing.
Once loaf is cooled completely, make your glaze: Place a small pot over low heat and add coconut milk, lemon juice, jam and lemon zest. Stir constantly until ingredients are well-combined. Drizzle glaze on top and garnish with zest from 1 lemon. Cut into 8 slices and enjoy!