Preheat oven to 180C (350F). Grease your baking mold lightly with coconut oil.
Infuse the zest: combine shredded coconut with allulose and lime zest in a large bowl. Rub the zest into the coconut with your fingers for 1-2 minutes to release the essential citrus oils. This step is not optional.
Mix wet ingredients: add eggs, Greek yogurt, coconut milk, and melted butter to the coconut mixture. Whisk until well combined.
Fold in dry ingredients: add almond flour, cinnamon, and salt. Fold until evenly distributed. The batter should be thick, rustic, and highly textured.
Bake: pour into prepared mold. Bake 35-45 minutes until edges are deep golden brown and a toothpick inserted in the center comes out clean.
Cool completely before slicing - at least 30 minutes. The allulose sets as it cools. Cutting warm will crumble the dessert. Finish with a fresh squeeze of lime juice and a dusting of lime zest just before serving.