Soften the base. Bring the cream cheese and butter to room temperature. This prevents lumps and makes the mixture smooth.
Make the base mixture. In a mixing bowl, beat cream cheese, butter, 1/3 cup powdered sweetener, vanilla, and salt until fluffy. Add heavy cream if you want a silkier texture.
If you prefer firmer fat bombs, beat in almond flour 1 tablespoon at a time.
Prepare the cinnamon layer. In a small bowl, mix the melted coconut oil (or butter), cinnamon, and 1–2 tablespoons powdered sweetener. Stir until smooth and glossy.
Layer or swirl. You can either: Swirl method: Fold the cinnamon mixture into the base with a spatula, leaving streaks like a cinnamon roll swirl.
Layer method: Spread half the base in a parchment-lined loaf pan, drizzle half the cinnamon mixture, repeat with remaining base and cinnamon, then lightly marble with a knife.
Chill to set. Refrigerate the mixture for 30–60 minutes until firm enough to scoop. For a sliceable bar style, chill in the loaf pan for at least 1 hour.
Portion the bombs. Use a small cookie scoop to form 16–20 bite-size balls.
Place them on a parchment-lined tray.
Optional drizzle. Beat the drizzle ingredients until smooth, then spoon or pipe lightly over the fat bombs.
Final chill. Refrigerate 20–30 minutes to set the drizzle. Enjoy straight from the fridge or slightly softened at room temp for 3–5 minutes.