Pre-heat oven to 350F. Spray an 8 1/2 x 4 1/2 inch loaf pan with cooking spray and parchment paper
Combine almond flour, cinnamon, cardamom, baking soda, salt and sugar in a large mixing bowl
Add sugar, eggs, oil, mango chunks and lemon juice to a blender container and blend until smooth
Pour mango mixture in the almond flour mixture and fold until evenly combined
Pour into loaf pan
Mix the crushed pecans in a small bowl and sprinkle with a little sugar and cinnamon (just eyeball it), if using and top the loaf with the mixture
Bake for 50 minutes or until clean knife inserted into the center comes out clean