Step 1: Line a baking sheet with parchment paper and dust lightly with oat flour. Set aside.
Step 2: In a food processor or large mixing bowl, combine the almond flour, oat flour, baking powder, coconut sugar, and salt. Pulse or whisk together until combined.
Step 3: Add the solid coconut oil (or cold, chopped plant-based butter) to the dry ingredients. Pulse in the food processor, or use a pastry cutter or fork to work the fat into the flour mixture until only small, pea-sized chunks remain. Do not overmix. The texture should be mostly sandy with distinct fat pieces throughout — this is what creates flaky, layered shortcake.
Step 4: In a small bowl, whisk together the coconut milk, flax egg, and vanilla. Add to the dry ingredients and stir or pulse until the dough just comes together.
Step 5: Transfer the dough to the prepared parchment-lined baking sheet and press it into a rough square about 1 inch thick. Cover and refrigerate for at least 1 hour (or up to overnight).
Baking the Shortcakes
Step 6: Preheat the oven to 400°F (204°C).
Step 7: Remove the chilled dough from the fridge. On a lightly dusted surface (keeping it on the parchment), roll it out to approximately 9 inches square. Use a 3-inch round biscuit cutter to cut out 6–7 rounds. Gather scraps, re-roll, and cut additional rounds.
Step 8: Place the rounds on the parchment-lined baking sheet with space between them. Brush each top with a little coconut milk and sprinkle with turbinado sugar if using.
Step 9: Bake for 20–25 minutes until golden brown. Let them cool slightly before assembling.
Macerate the Strawberries
Step 10: While the shortcakes bake, combine the sliced strawberries, coconut sugar, lemon zest, vanilla, and mint in a bowl. Stir gently and set aside. The strawberries will release their juice and become beautifully syrupy as they sit.
Make the Coconut Whipped Cream
Step 11: Open the chilled coconut cream and drain off any liquid (save it for smoothies). Scoop the solidified cream into a mixing bowl. Whip with an electric mixer for about 30 seconds until smooth and fluffy. Add the maple syrup and vanilla and whip briefly to combine.
Assemble
Step 12: Place a shortcake on each plate. Top with a generous spoonful of coconut whipped cream and a heap of macerated strawberries and their juice. Serve immediately.