Prep the berries. In a bowl, toss 2 cups sliced strawberries with 1–2 tablespoons keto sweetener and 1 teaspoon lemon juice. Add a pinch of lemon zest if you like. Set aside to macerate while you bake.
Heat the oven. Preheat to 350°F (175°C).
Line a baking sheet with parchment paper.
Mix the dry ingredients. Whisk 1 1/2 cups almond flour, 2 tablespoons coconut flour, 2 teaspoons baking powder, and 1/4 teaspoon salt until well combined.
Cut in the butter. Add 4 tablespoons cold, cubed butter. Use a pastry cutter or your fingers to rub it into the flour until it looks like coarse crumbs with pea-size bits of butter.
Add the wet ingredients. In a small bowl, beat 2 eggs with 1/4 cup heavy cream, 2–3 tablespoons granulated keto sweetener, and 1 teaspoon vanilla. Pour into the dry mixture and stir just until it comes together.
The dough will be thick and slightly sticky.
Shape the shortcakes. Scoop 6 mounds onto the baking sheet, spacing them out. Gently pat the tops to round them. Do not overwork; light handling keeps them tender.
Bake. Bake for 16–20 minutes, until the tops are golden and a toothpick comes out clean.
Let them cool on the sheet for 5 minutes, then transfer to a rack.
Whip the cream. Beat 3/4 cup heavy cream with 2–3 tablespoons powdered keto sweetener and 1/2 teaspoon vanilla to soft peaks. For extra stability, beat in 1 tablespoon softened cream cheese until smooth and fluffy.
Assemble. Split each shortcake horizontally with a serrated knife. Spoon strawberries (and their juices) over the bottom half, top with a generous scoop of whipped cream, and cap with the other half.
Add more berries and cream on top if you’re feeling festive.
Serve. Enjoy right away while the shortcakes are slightly warm and the cream is cool.