Step 1: Make the Blueberry Sauce - Add the blueberries, sugar, and lemon juice to a microwave safe bowl. Stir to combine so the sugar coats the berries. Microwave in one minute intervals, stirring after each round, for a total of about three minutes. The blueberries should burst and release their juices, forming a loose sauce. Set aside and let it cool completely before assembling your cups. Warm sauce will melt the cream layers and nobody wants that.
Step 2: Whip the Lemon Cheesecake Filling - In a large bowl, add the softened cream cheese, heavy cream, and powdered sugar. Beat until the mixture thickens slightly and looks smooth. Add the lemon juice and lemon zest, then beat again just until everything is creamy and well combined. The filling should be light, smooth, and spoonable. If you see lumps, keep mixing until they disappear.
Step 3: Build the Cookie Base - Spoon about two teaspoons of crushed cookies into the bottom of each serving cup. Use the back of the spoon to press lightly so the crumbs form a base. You do not need to pack it down hard. Just enough to give the layers something to sit on.
Step 4: Layer the Cups - Spoon or pipe a layer of the lemon cheesecake filling over the cookie base. Add a generous spoonful of the cooled blueberry sauce on top of the cream. Repeat the layers if your cups are tall enough. Finish with blueberry sauce on top and a little sprinkle of lemon zest if you want it to look extra pretty.
Step 5: Chill and Let the Flavors Settle - Place the cups in the refrigerator for at least one hour. This gives the filling time to firm up and lets the flavors come together. If you have the time to chill them longer, even overnight, they only get better.