Prepare Blueberries:Cook 2 cups of blueberries with 1 tbsp lemon juice and ¼ cup sugar until soft. Blend until smooth and cool.
Make Ice Cream Base:Mix 1 cup heavy cream, 1 cup whole milk, ½ cup sugar, 1 tsp vanilla extract, and a pinch of salt until sugar dissolves.
Combine and Freeze:Mix blueberry puree with the ice cream base. Freeze in a container for at least 24 hours.
Process with Ninja Creami:Use the Ninja Creami's "Ice Cream" function to churn the frozen mixture. Re-spin if needed for a smoother texture. Serve immediately.
