01 -
Heat the oven to 350°F (175°C). Line a 12-cup muffin pan with parchment liners or grease the cups well.
02 -
Beat the softened cream cheese, sweetener, melted butter, vanilla, and lemon zest until smooth and creamy, about 1-2 minutes.
03 -
Beat in the eggs one at a time, mixing just until each egg is incorporated. Scrape the bowl as needed.
04 -
Stir in almond flour, baking powder, and salt until combined. Fold in blueberries or sugar-free chocolate chips if using. Rest the batter for 5 minutes.
05 -
Divide the batter evenly among the muffin cups, filling each about three-quarters full. Bake for 18-22 minutes, until the tops are set and the edges are lightly golden.
06 -
Cool in the pan for 10 minutes, then transfer to a rack. Serve at room temperature or chill for a firmer texture.