Company was coming and I wanted something easy, quick, yet nice for dessert and came up with this recipe. It was raved over. You may make it in a bowl like a trifle or free standing on a plate. If you assemble it on a plate, stick four bamboo skewers through it to keep it from shifting. I used purchased sponge cake, or if you like try an angel food cake. We have a dairy that makes wonderful no fat French Vanilla yogurt and it worked well but it is your choice to find your favorite. I used Mango French Vanilla and some plain French Vanilla on top, again choose your favorite to compliment the blueberries. This dessert can be made a day ahead and kept in the refrigerator or serve it right away.