Heat the oven to 350°F/175°C.
Mix almond flour, coconut oil, and honey or maple syrup until crumbly. Press firmly into the bottom of a 20 cm/8-inch pan. Bake until the edges are golden, 10–12 minutes. Cool completely.
Combine filling ingredients in a heatproof bowl. Set over a saucepan of simmering water, whisking constantly, until thickened, 7–10 minutes. If lumpy, blend with an immersion blender. Pour over the crust and smooth the top. Chill until set, at least 4 hours.
Stir the glaze ingredients until smooth. Spread gently over the chilled pie. Slice and serve cold.