Preheat your oven to 350°F and grease a 9-inch springform pan. Line the bottom with parchment paper for easy removal.
In a large bowl, whisk together almond flour, baking powder, and salt. Set aside.
In another bowl, beat together ricotta cheese, monk fruit sweetener, eggs, lemon juice, lemon zest, coconut oil, and vanilla extract until smooth and well combined.
Pour the wet ingredients into the dry ingredients and gently fold together until just combined. Don't overmix!
Pour the batter into your prepared pan and smooth the top with a spatula.
Bake for 38-42 minutes, until the top is golden and a toothpick inserted in the center comes out clean.
Let cool in the pan for 15 minutes, then remove the ring and transfer to a wire rack to cool completely. Dust with powdered monk fruit sweetener if desired before serving.