Preheat Your Oven: Start by preheating your oven to 350°F (about 180°C). This ensures your cake cooks evenly and beautifully.

Mix Eggs with Sweetener: In a large mixing bowl, crack the eggs and add the cup of sweetener. Whisk them together until the mixture is well combined and slightly frothy. This process not only blends the ingredients but also helps to incorporate air, making your cake lighter.

Add Almond Flour and Cinnamon: To the egg and sweetener mixture, gently fold in the 2 cups of almond flour. If you've decided to add that teaspoon of cinnamon, now is the time to sprinkle it in. Mix everything together until you have a smooth and homogenous batter. The almond flour not only adds a nutty depth to the cake but also keeps it gluten-free and packed with nutrients.

Bake the Cake: Pour the batter into a greased baking pan. An 8-inch round pan works perfectly for this amount of batter, but use what you have on hand. Smooth the top with a spatula to ensure an even bake.

Baking Time: Place the pan in the preheated oven and bake for about 30 minutes. The exact time can vary depending on your oven, so it's a good idea to check the cake around the 25-minute mark. You'll know it's done when it's golden brown on top and a toothpick inserted into the center comes out clean.

Cool and Serve: Once baked, remove the cake from the oven and let it cool in the pan for a few minutes. Then, transfer it to a wire rack to cool completely. This cake is delicious both warm and at room temperature.