Get Ready to Bake: Preheat your oven to 350°F (175°C). Lightly spray a 9x13 inch baking pan with cooking spray.
Whip Up the Cake Batter: In a large bowl, gently combine all the cake ingredients until they are just mixed. It's important not to overmix to ensure your cake stays wonderfully light and fluffy.
Spread the Batter Evenly: Carefully spread the thick cake batter into your prepared baking pan. Don't fret if it seems a bit dense – the cinnamon swirl will keep it perfectly moist.
Prepare the Delicious Cinnamon Swirl: In a separate small bowl, mix together the melted butter, brown sugar substitute, almond flour, and ground cinnamon until well combined.
Create the Signature Swirl: Pour the cinnamon mixture over the cake batter. Take a knife and gently swirl it through the batter, ensuring the rich filling reaches all the way to the bottom for that classic cinnamon roll look. It’s supposed to look delightfully bumpy!
Bake Until Golden: Place the pan in your preheated oven and bake for 35-40 minutes. The cake is done when the center is set and no longer wobbly.
Make the Creamy Glaze: While the cake is still warm, combine the softened cream cheese, heavy cream, and sweetener in a bowl. Whisk until it's smooth and deliciously creamy.
Glaze and Enjoy Your Treat: Spread the luscious cream cheese glaze generously over the warm cake. Once cooled slightly, slice into individual portions and savor every healthy, delightful bite!