Preheat the oven to 350°F. Line a small baking sheet or tray with parchment paper.
Make the flax egg: In a small bowl, mix ground flaxseed with warm water. Let sit for 5 minutes to thicken.
Mix dry cookie ingredients: In a medium bowl, combine rolled oats, all-purpose flour, almond flour, baking powder, baking soda, cinnamon, and sea salt.
Mix wet cookie ingredients: In another bowl, whisk together the flax mixture, almond butter, coconut oil, maple syrup, and vanilla extract until smooth.
Finish cookie dough: Fold the wet mixture into the dry ingredients. Stir in walnuts, blueberries, and lemon zest.
Shape & bake cookies: Scoop dough into 4 evenly sized cookies on the baking sheet and gently flatten. Bake for 12–14 minutes, until lightly golden around the edges.
Cook the soft-boiled eggs: bring a saucepan of water to a gentle boil. Carefully lower in the eggs and cook for 6 minutes for jammy yolks. Transfer immediately to ice water for 1–2 minutes, then peel.
Brew and prepare the coffee to your liking.
Serve the cookies with soft-boiled eggs, fruit, and coffee.